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Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 21 - 21
1 Sep 2019
Saunders B Bartlam B Artus M Foster N Konstantinou K
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Background

Sciatica is common and associated with significant impacts for the individual, health care and society. The SCOPiC randomised controlled trial (RCT) is investigating whether stratified primary care for sciatica is more effective and cost-effective than usual, non-stratified primary care. Stratified care involves subgrouping patients to one of three groups based on a combination of prognostic and clinical indicators. Patients in one of these groups are ‘fast-tracked’ with an MRI scan to spinal specialist opinion. Our aim was to understand the perspectives of clinicians on the acceptability of this ‘fast-track’ pathway.

Methods

Qualitative, semi-structured interviews were conducted with general practitioners, spinal specialist physiotherapists and spinal surgeons (n=20 in total). Interviews were fully transcribed, and data were analysed using the constant comparison method.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 14 - 14
1 Sep 2019
Steenstra I McIntosh G Chen C D'Elia T Amick B Hogg-Johnson S
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Purposes and Background

Musculoskeletal disorders are leading causes of work disability. Our purpose was to develop a predictive model in a cohort from 2012 and validate the model in 2016 data.

Methods and Results

Prospectively collected data was used to identify inception cohorts in 2012 (n=1652) and 2016 (n=199). Data from back pain claimants receiving treatment in physiotherapy clinics and the Ontario workers' compensation database were linked. Patients were followed for 1 year.

Variables from a back pain questionnaire and clinical, demographic and administrative factors were assessed for predictive value. The outcome was cumulative number of calendar days receiving wage-replacement benefits.

Cox regression revealed 8 significant predictors of shorter time on benefits in the 2012 cohort: early intervention (HR=1.51), symptom duration < 31 days (HR=0.88), not in construction industry (HR=1.89), high Low Back Outcome Score (HR=1.03), younger age (HR=0.99), higher benefit rate (HR=1.00), intermittent pain (HR=1.15), no sleep disturbance (HR=1.15). The 2012 model c-statistic was 0.73 with a calibration slope of 0.90 (SE=0.19, p=0.61) in the 2016 data, meaning not significantly different. The c-statistic in the 2016 data was 0.69. Median duration on benefits of those with a high risk score was 129 days in 2012 and 45 days in 2016.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 22 - 22
1 Sep 2019
Thorpe A Partridge S Snuggs J Vickers L Charlton F Cole A Chiverton N Sammon C Le Maitre C
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Background

Intervertebral disc (IVD) degeneration is a major cause of low back pain (LBP). We have developed an injectable hydrogel (NPgel), which following injection into bovine IVD explants, integrates with IVD tissue and promotes disc cell differentiation of delivered mesenchymal stem cells (MSCs) without growth factors. Here, we investigated the injection of NPgel+MSCs into IVD explants under degenerate culture conditions.

Methods and Results

The NPgel integrated with bovine and human degenerate Nucleus Pulposus (NP) tissue and hMSCs produced matrix components: aggrecan, collagen type II and chondroitin sulphate in standard and degenerate culture conditions. Significantly increased cellular immunopositivty for aggrecan was observed within native NP cells surrounding the site where NPgel+MSCs were injected (P≤0.05). In NP explants a significant decrease in catabolic factors were observed where NPgel+MSCs was injected in comparison to controls.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 24 - 24
1 Sep 2019
Freidin M Kraatari M Skarp S Määttä J Kettunen J Niinimäki J Karppinen J Männikkö M Williams F
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Objective

Modic changes (MC), a form of intervertebral disc degeneration visible as subchondral and vertebral bone marrow changes on spine magnetic resonance (MR), are known to be associated with low back pain. This study aimed to identify genes contributing to the development of MC using genome-wide association study.

Methods

Presence of MC was evaluated in lumbar MR images in the Northern Finland Birth Cohort 1966 (NFBC1966, N=1182) and TwinsUK (N=647). Genome-wide association analyses were carried out in the cohorts separately using a linear regression model fitted to test for additive effects of SNPs and adjusting for age, sex, BMI, and either family relatedness via a kinship matrix (TwinsUK) or population stratification using principal components (NFBC1966). Meta-analysis of the two studies was carried out using the inverse-variance weighting approach.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 25 - 25
1 Sep 2019
Williams F Palmer M Tsepilov Y Freidin M Boer C Yau M Evans D Gelemanovic A Bartz T Nethander M Arbeeva L Karssen L Neogi T Campbell A Mellstrom D Ohlsson C Marshall L Orwoll E Uitterlinden A Rotter J Lauc G Psaty B Karlsson M Lane N Jarvik G Polasek O Hochberg M Jordan J van Meurs J Jackson R Nielson C Mitchell B Smith B Hayward C Smith N Aulchenko Y Suri P
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Purpose

Back pain is the primary cause of disability worldwide yet surprisingly little is known of the underlying pathobiology. We conducted a genome-wide association study (GWAS) meta-analysis of chronic back pain (CBP). Adults of European ancestry from 15 cohorts in the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) consortium, and UK Biobank were studied.

Methods

CBP cases were defined as reporting back pain present for ≥3–6 months; non-cases were included as comparisons (“controls”). Each cohort conducted genotyping followed by imputation. GWAS used logistic regression with additive genetic effects adjusting for age, sex, study-specific covariates, and population substructure. Suggestive (p<5×10–7) & genome-wide significant (p<5×10–8) variants were carried forward for replication in an independent sample of UK Biobank participants. Discovery sample n = 158,025 individuals, including 29,531 CBP cases.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 31 - 31
1 Sep 2019
Broekema A Molenberg R Kuijlen J Groen R Reneman M Soer R
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Introduction

The Odom's criteria are, since 1958, a widely used 4-point rating scale for assessing the clinical outcome after cervical spine surgery. Surprisingly, the Odom's criteria have never been validated. The aim of this study was to investigate the reliability and validity of the Odom's criteria for the evaluation of surgical procedures of the cervical spine.

Methods

Patients with degenerative cervical spine disease were included and divided into two groups, based on their most predominant symptom: myelopathy or radiculopathy. Reliability was assessed with inter-rater and test-retest design using a quadratic weighted Kappa coefficient. Construct validity was assessed by means of hypothesis testing with related constructs. To evaluate if the Odom's criteria could act as a global perceived effect (GPE) scale, we assessed concurrent validity by comparing the areas under the curves (AUCs) of the receiver operating characteristic curves (ROCs) with both the Odom's criteria, as the GPE as an anchor.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 32 - 32
1 Sep 2019
Lemmers G van Lankveld W van der Wees P Westert G Staal J
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Background

Routine imaging (radiography, CT, MRI) provides no health benefits for low back pain (LBP) patients and is not recommended in clinical practice guidelines. Whether imaging leads to increased costs, healthcare utilization or absence from work is unclear.

Purpose

To systematically review if imaging in patients with LBP increases costs, leads to higher health care utilization or increases absence from work.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 56 - 56
1 Sep 2019
Echeita JA Preuper HS Dekker R Reneman M
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Background and purposes

Central Sensitization (CS) may occur in patients with Chronic Low Back Pain (CLBP). Functional capacity these patients is limited. However, the association of CLBP with functioning assessed via lifting and aerobic capacity tests has been moderately explained and results are contradictory. Let alone pain response following strenuous exercise. Finally, whether CS is associated with either or both lifting and aerobic capacities is unknown.

To analyze the relationship between CS, and lifting and aerobic capacities in patients with CLBP.

To describe pain response to strenuous exercise in patients with CLBP.

Methods

Cross-sectional observational study. CS, lifting and aerobic capacities, and pain response were respectively measured with Central Sensitization Inventory (CSI), floor-to-waist lifting test, Cardiopulmonary Exercise Test (CPET), and Pain response questionnaire.

Statistical analyses:

Stepwise-forward multiple regression with lifting and aerobic capacities (dependent), CSI (independent), physical, work- and disability-related characteristics (covariates);

Paired t-test of pain response before CPET pain to immediately and 24h after, and correlation of the changes with CSI.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 59 - 59
1 Sep 2019
Speijer L Soer R Reneman M Stegeman P Dutmer A
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Background

The aim of the Groningen Spine Center (GSC) is to provide personalized and effective interventions to patients with spine-related disorders. The GSC comprises a multidisciplinary team to triage and treat patients most optimally.

Aim

To investigate the patient reported clinical results of the treatments of the GSC during seven years of its existence.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 35 - 35
1 Sep 2019
Breen A Mellor F Breen A
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Purpose and background

Recent research has identified possible functional biomarkers in chronic, nonspecific back pain (CNSLBP) based on intervertebral kinematics. Although excessive IV-RoM is no longer regarded as a clear motion abnormality, some studies have found subtle kinematic measures such as mid-range laxity and motion sharing inequality to be greater in CNSLBP patients. We studied a group of such patients who were investigated following failed interventions in terms of these subtle measures.

Methods

Thirty-seven patients (mean age 47.5 years SD10.87, F14, M23) with CNSLBP that had recently failed to respond to a range of treatments and 37 healthy controls received passive recumbent lumbar intervertebral flexion assessments following a standardised quantitative fluoroscopy (QF) protocol. Groups were compared for motion sharing inequality (MSI) and variability (MSV) (L2-S1), for level by level laxity and translation, and with reference ranges of these from a separate group of healthy controls (n=54).


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 17 - 17
1 Sep 2019
Reddington M Walters S Cohen J Baxter S Cole A
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Purpose of the study

To investigate the feasibility of undertaking a definitive Randomised Controlled Trial (RCT) to determine the effectiveness of early physiotherapy for sciatica.

Methods

Patients over 18 presenting to their G.P with sciatica were eligible to participate in the study, those without a clear understanding of English or had co-morbidities preventing rehabilitation were ineligible. Process and patient reported outcomes including self-rated disability, pain and general health, were collected at baseline, 6,12 and 26 weeks post randomisation.

Participants were randomised into either early physiotherapy, receiving treatment within 2 weeks after randomisation or usual care with physiotherapy commencing 6 weeks post randomisation. Both groups received up to 6 treatment sessions of a patient-centred, goal orientated physiotherapy programme specific to their needs.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 39 - 39
1 Sep 2019
Daneshnia Y Snuggs J Scott A Le Maitre C
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Background

Intervertebral disc (IVD) degeneration is a major cause of low back pain (LBP). Degenerate discs are associated with accelerated cellular senescence. Cell senescence is associated with a secretory phenotype characterised by increased production of catabolic enzymes and cytokines. However to date, the mechanism of cell senescence within disc degeneration is unclear. Senescence can be induced by increased replication or induced by stress such as reactive oxygen species or cytokines. This study investigated the association of cellular senescence with markers of DNA damage and presence of cytoplasmic DNA (which in cancer cells has been shown to be a key regulator of the secretory phenotype), to determine mechanisms of senescence in disc degeneration.

Methods and Results

Immunohistochemistry for the senescence marker: p16INK4A was firstly utilised to screen human intervertebral discs for discs displaying at least 30% immunopostivity. These discs were then subsequently analysed for immunopostivity for DNA damage markers γH2AX and cGAS and the presence of cytoplasmic DNA. The number of immunopositive cells for p16INK4A positively correlated with the expression of γH2AX and cGAS. Senescent cells were also associated with the presence of cytoplasmic DNA.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 40 - 40
1 Sep 2019
Sheeran L Robling M
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Purposes of the study and background

Clinical assessment of spinal function is a routine part of low back pain (LBP) assessment, yet there is no clear consensus on what constitutes ‘spinal dysfunction’ and how this informs treatment. This study's aims to develop a spinal function classification framework by gaining expert academic and clinical consensus on (i) spinal function assessment tests (ii) encountered LBP motor control/movement impairment (MCI/MI) sub-types (iii) their characteristics and (iii) exercises and feedback for each sub-type.

Methods and Results

An online 2-round Delphi-survey of 4 world-leading academic experts and 36 clinical physiotherapists world-wide was employed. A five-point response scale was used to rate level of agreement on 174 items with a priori consensus defined by a ≠>80% level of agreement (LOA). Out of 15 spinal function assessment tests, 5 reached consensus with forward bend and sitting/standing tests highest scoring. 7 MCI/MI sub-types reached consensus as clinically encountered. 12 out of 128 of posture/movement descriptors within the 7 sub-types reached consensus. 7 exercises gained consensus in being considered as ‘important’ or ‘very important’ with exercises involving sitting, standing, forward bend scoring highest. Consensus was reached on MCI/MI sub-type specific exercises, compensation strategies and feedback to remedy these compensations.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 41 - 41
1 Sep 2019
van den Berg R Jongbloed E de Schepper E Bierma-Zeinstra S Koes B Luijsterburg P
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Background

About 85% of the patients with low back pain seeking medical care have nonspecific low back pain (NsLBP), implying that no definitive cause can be identified. Many pain conditions are linked with elevated serum levels of (pro-)inflammatory biomarkers.

Purpose

To unravel the etiology and get better insight in the prognosis of NsLBP, the aim of this study was to assess the association between (pro-)inflammatory biomarkers and the presence and severity of NsLBP.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 44 - 44
1 Sep 2019
Riis A Karran E Jørgensen A Holst S Rolving N
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Background

Advice to stay active should be delivered to all patients with low back pain (LBP) without a serious underlying condition. However, some patients still believe that the avoidance of activities will help them to recover. These patients may be less likely to experience favourable outcomes.

Purpose

To investigate how many patients consider LBP to be a signal to stop being active.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 46 - 46
1 Sep 2019
Breen A Hemming R Claerbout E Breen A
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Purpose and background

Static plain radiographs at the end of uncontrolled bending are the current standard of care for measuring translatory slip in back pain patients. Quantitative fluoroscopy systems (QF) that employ standardised bending protocols have been found to improve precision and reduce dose, but comparative data are lacking. We compared 4 QF methods with static radiographs in a control population, calculating ranges, population variation and measurement errors over 6 weeks.

Methods

Fifty-four healthy controls (F=22, M=23) received passive recumbent and active weight bearing QF screenings during controlled motion, plus still fluoro imaging in neutral, flexion and extension. The translatory slip of all levels from L2-S1 was determined for each condition using bespoke image tracking codes (Matlab) and pooled to provide means and ranges of variation (+/-1.96SD). The pooled measurement error, or minimal detectable change (MDC95), reflecting the intra subject repeatability over 6 weeks was calculated. Ranges of translation for each level (L2-S1), for each type of motion were also calculated.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 48 - 48
1 Sep 2019
Partridge S Thorpe A Le Maitre C Sammon C
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Introduction

Injectable hydrogels via minimally invasive surgery reduce the risk of infection, scar formation and the cost of treatment. Degradation of the intervertebral disc (IVD) currently has no preventative treatment. An injectable hydrogel material could restore disc height, reinforce local mechanical properties, and promote tissue regeneration. We present a hydrogel material Laponite® associated poly(N-isopropylacrylamide)-co-poly(dimethylacrylamide) (NPGel). Understanding how the components of this hydrogel system influence material properties, is crucial for tailoring treatment strategies for the IVD and other tissues.

Methods & Results

The effect of hydrogel wt./wt., clay and co-monomer percentages were assessed using a box-Behnken design. Rheometry, SEM, FTIR and swelling was used to measure changes in material properties in simulated physiological conditions. Rheometry revealed gelation temperature of hydrogel materials could be modified with dimethyl-acrylamide co-monomer; however, final maximum mechanical properties remained unaffected. Increasing the weight % and clay % increased resultant mechanical properties from ∼500–2500 G' (Pa), increased viscosity, but retained the ability to flow through a 26G needle at 39°C.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 49 - 49
1 Sep 2019
Beemster T van Velzen J van Bennekom C Reneman M Frings-Dresen M
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Purpose

The aim of this study was to explore the usefulness and feasibility of comprehensive vocational rehabilitation (C-VR) and less comprehensive vocational rehabilitation (LC-VR) for workers on sick leave due to CMP, from the perspective of patients, professionals, and managers.

Methods

Semi-structured interviews were held with patients, professionals, and managers. Using topic lists, interviewees were questioned about barriers to and facilitators of the usefulness and feasibility of C-VR and LC-VR. All interviews were transcribed verbatim. Data were analyzed by systematic text condensation using thematic analysis.


Background

There is growing evidence for an important role of central sensitization (CS) in the development and maintenance of chronic pain. Consequently, alleviation of CS might be helpful, as was demonstrated for pregabalin. For tapentadol this is unknown.

Tapentadol is a drug with a dual mechanism: 1) it acts on the mu-opioid receptor (µ-OR) and 2) it inhibits the reuptake of noradrenalin in the central nervous system3. The noradrenergic effect might involve a modulation of descending pain pathways and thereby reduce or alleviate CS.

Aim

The aim of the present study is to determine the alterations in CS parameters by tapentadol in patients with chronic visceral (endometriosis) pain and deep somatic (low back) pain, using pregabalin as comparator.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 53 - 53
1 Sep 2019
Delion T Draper-Rodi J
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Purpose of the study and background

The biopsychosocial (BPS) model is now widely implemented in clinical practice. Most research on manual therapists' attitudes regarding psychosocial (PS) factors and NSLBP is from the physiotherapy profession. There is currently no literature available to understand how osteopaths integrate those factors with patients presenting with NSLBP. The University College of Osteopathy students being the future of the profession and receiving an accredited BPS teaching warranted the need for an investigation about their attitudes towards PS factors and NSLBP.

Methods and results

A qualitative research design with elements of grounded theory was used. Nine final year UCO students were recruited and interviewed at the UCO teaching centre. Data collection and analysis occurred simultaneously through the constant comparative method of analysis.

Three main themes emerged from the data analysis: 1) Definition and interpretation of PS factors towards LBP; 2) Assessment and management of PS factors; 3) Competence and difficulties towards PS factors.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 8 - 8
1 Sep 2019
Breen A Hemming R Mellor F Breen A
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Background

Dynamic measurement of continuous intervertebral motion in low back pain (LBP) research in-vivo is developing. Lumbar motion parameters with the features of biomarkers are emerging and show promise for advancing understanding of personalised biometrics of LBP. However, measurement of changes over time inevitably involve error, due to subjects' natural variation and/or variation in the measurement process. Thus, intra-subject repeatability of parameters to measure changes over time should be established.

Methods

Seven lumbar spine motion parameters, measured using quantitative fluoroscopy (QF), were assessed for intra-subject repeatability: Intervertebral range-of-motion (IV-RoM), laxity, motion sharing inequality (MSI), motion sharing variability (MSV), flexion translation and flexion disc height. Intra-subject reliability (ICC) and minimal detectable change (MDC95) of baseline and 6-week follow-up measurements were obtained for 109 healthy volunteers (54 coronal and 55 sagittal).


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 27 - 27
1 Sep 2019
van den Berg R Enthoven W de Schepper E Luijsterburg P Oei E Bierma-Zeinstra S Koes B
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Background

The majority of adults will experience an episode of low back pain during their life. Patients with non-specific low back pain and lumbar disc degeneration (LDD) may experience spinal pain and morning stiffness because of a comparable inflammatory process as in patients with osteoarthritis of the knee and/or hip. Therefore, this study assessed the association between spinal morning stiffness, LDD and systemic inflammation in middle aged and elderly patients with low back pain.

Methods

This cross-sectional study used the baseline data of the BACE study, including patients aged ≥55 years visiting a general practitioner with a new episode of back pain. The association between spinal morning stiffness, the radiographic features of lumbar disc degeneration and systemic inflammation measured with serum C-reactive protein was assessed with multivariable logistic regression models.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 28 - 28
1 Sep 2019
Soer R Buwalda N Mireau J Coppes M Wolff A Preuper HS Reneman M
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Aims

The aims of this study were to investigate whether 1) multispecialist tertiary intervention for complex spinal pain lead to reductions in spine-related healthcare costs and 2) baseline characteristics are related to health care consuming costs.

Patients and methods

A cost study in a natural prospective cohort was carried out to investigate healthcare data of patients admitted to the Groningen Spine Center (GSC) ranging from two years prior to referral until two year after discharge. GSC intervention consisted of a multi-professional and -specialist based diagnosis and treatment. Patients (18 and 80 years) were included, suffering from specific as well as multifactorial spinal pain. Clinical data was merged with Health Care Insurance data and included questionnaires on demographics, work, pain, disability, quality of life and psychosocial functioning. Univariable (paired sample t-tests) and multivariable analyses (pooled OLS Regression and fixed effects models) were carried out.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 37 - 37
1 Sep 2019
Webber R Partridge R Grindell C
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Study Aim

To design an educational resource for people with lower back pain (LBP) using creative co-production.

Background

Beliefs associated with a traditional biomedical view of LBP can be a barrier to recovery. Education that reframes the problem as complex and multifactorial may help patients except and engage with more positive attitudes and behaviours.

Creative co-production provides a different approach to research intervention development. It encourages a collaborative problem-solving and non-hierarchical approach to knowledge mobilisation.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 18 - 18
1 Sep 2019
Reddington M Walters S Cohen J Baxter S Cole A
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Purpose of the study

The aims of the study were to explore the experiences of sciatica sufferers, their perceptions of physiotherapy and healthcare service provision.

Methods

This was the qualitative element of a mixed methods study investigating the feasibility of early physiotherapy for sciatica. Participants in the pilot trial consented to take part in semi-structured interviews before and after they had undertaken an individualised physiotherapy programme. Data from the interviews was examined line by line using a thematic analysis approach with key themes and sub-themes emerging.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 42 - 42
1 Sep 2019
Bain A Vogel S
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Background

There is an increasing burden of LBP. Clinical guidelines promote physical activity (PA) and self-management strategies and aim to reform unhelpful clinical activity. This study explores osteopaths' beliefs about non-specific low back pain (NSLBP) and the role of activity in the treatment of NSLBP.

Methods

Semi-structured interviews were conducted with a purposive sample of twelve qualified osteopaths in the UK. Interviews were transcribed verbatim and constructivist grounded theory was used to conceptualise, collect and analyse data.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 10 - 10
1 Sep 2019
Deane J Lim A Strutton P McGregor A
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Introduction

Patients with recurrent low back pain (LBP) exhibit changes in postural control. Stereotypical muscle activations resulting from external perturbations include anticipatory (APAs) and compensatory (CPAs) postural adjustments. This study aimed to determine differences in postural control strategies (APAs and CPAs) between those with and without lumbar disc degeneration (LDD) and LBP.

Methods

Ninety-seven subjects participated in the study (mean age 50 years (SD 12)). 3T MRI was used to acquire T2 weighted images (L1-S1). LDD was determined using Pfirrmann grading and LBP using the numerical rating scale (NRS). A bespoke perturbation platform was designed to deliver postural perturbations. Electrical activity was analysed from 16 trunk and lower limb muscles during four typical APA and CPA epochs. A Kruskal-Wallis H test with Bonferroni correction for multiple comparisons was conducted.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 1 - 1
1 Sep 2019
Osborn-Jenkins L Roberts L
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Purpose and background

Back pain guidelines endorse giving advice to enable people to self-manage and continue normal activities. Little is known however, about the content of advice that clinicians give and this project aimed to identify the advice given by physiotherapists to patients with back pain at their initial consultation.

Patients and methods

Twenty-five audio-recordings of patients with back pain and physiotherapists in a primary care outpatient department were collected, transcribed, coded and thematically analysed using a Framework approach to identify the content of advice given.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 3 - 3
1 Sep 2019
Cabrita M Nijeweme - d'Hollosy WO Jansen-Kosterink S Hermens H
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Background

Patients with Neck and/or Low Back Pain (NLBP) constitute a heterogeneous group with the prognosis and precise mix of factors involved varying substantially between individuals. This means that a one-size-fits-all approach is not recommended, but methods to tailor treatment to the individual needs are still relatively under-developed. Moreover, the fragmentation of disciplines involved in its study hampers achieving sound answers to clinical questions. Data mining techniques open new horizons by combining data from existing datasets, in order to select the best treatment at each moment in time to a patient based on the individual characteristics.

Method

Within the Back-UP project (H2020 #777090) a multidisciplinary consortium is creating a prognostic model to support more effective and efficient management of NLBP, based on the digital representation of multidimensional clinical information. Patient-specific models provide a personalized evaluation of the patient case, using multidimensional health data from the following sources: (1) psychological, behavioral, and socioeconomic factors, (2) biological patient characteristics, including musculoskeletal structures and function, and molecular data, (3) workplace and lifestyle risk factors.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 5 - 5
1 Sep 2019
Greenwood J Hurley M McGregor A Jones F
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Purpose

The behavioural change wheel methodology and social cognitive theory were combined to inform and develop a rehabilitation programme following lumbar fusion surgery (REFS).

This qualitative study evaluated participant's experiences of lumbar fusion surgery, including REFS, to identify valued programme content (‘active ingredients’).

Background

A feasibility-RCT suggested REFS achieved a meaningful impact in disability and pain self-efficacy compared to ‘usual care’ (p=0.014, p=0.007).

In keeping with MRC guidance a qualitative evaluation was undertaken to understand possible mechanisms of action.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 43 - 43
1 Sep 2019
Roddha R Braybrooke J
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Introduction

The aim of this study was to assess patients and healthcare professionals (HCPs) opinions on the validity of using a biopsychosocial model rather than a biomedical model in alleviating patient symptoms/pain.

Method

We constructed a questionnaire to assess beliefs on the effectiveness of using a biopsychosocial or biomedical model to develop a treatment plan to optimise patient symptoms/pain. We distributed the questionnaire to new and follow-up patients and healthcare professional in the orthopaedic department.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 54 - 54
1 Sep 2019
Schuttert I Timmerman H Groen G Wolff A
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Background

There is growing evidence for an important role of central sensitization (CS) in the development and maintenance of chronic pain. This accounts for patients with chronic low back pain radiating to the leg (CLBPr) as well. Care as Usual (CaU) in these patients consists of diagnostic segmental nerve root blocks (dSNRB) followed by therapeutic interventions, i.e. a therapeutic segmental nerve root block (tSNRB) or pulsed radiofrequency (pRF). However, it is unknown if these procedures affect the amount of CS in these patients.

Aim

The aim of the present study is to determine the alterations in the presentation of CS in CLBPr patients during care as usual.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 55 - 55
1 Sep 2019
Alhashel A Alamri E Sparkes V
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Purpose & Background

The ability to jump higher is a key factor for athletic performance and relies on many factors including spinal movement and trunk muscle activity. Manual therapy including Mulligan' Sustained Natural Apophyseal Glide (SNAG) techniques are proposed to increase spinal movement and thus function. The evidence pf the effect of manual therapy on muscle activity is limited. We aimed to determine the immediate effects of an extension SNAG on the lower lumbar spine on jump height and rectus abdominis (RA), external oblique (EO), multifidus (M) and iliocostalis Lumborum (IL) muscle activity during the flight phase of vertical jump compared to a placebo intervention (flat hand pressure).

Method

Eighteen healthy participants (16 males, age 28.11±5.01 years, weight 70.58±11.9 kg, height 1.70±0.07m, body mass index 24.28±3.30)from Cardiff University were randomly allocated to either an extension SNAG or placebo intervention. Surface Electromyography was normalised to maximum voluntary contraction and was collected during the flight phase of the jump and jump height was measured using jump and reach test.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 60 - 60
1 Sep 2019
Stegeman P Speijer L Hamelink J Sterken M Soer R Wolff A Preuper HS Reneman M Nijeweme - d'Hollosy WO
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Aims

The aim of this study was to investigate the agreement of physician assistants (PAs) in the triaging of patients with Low Back Pain (LBP) based on self-reported data.

Patients and methods

A cross sectional vignette study among four PAs was carried out. Vignettes (cases) were constructed including 26 factors that can be self-reported, identified in literature that have predictive value in treatment outcomes (for example red flags indicating serious underlying conditions and yellow flags indicating psychosocial factors). All vignettes were randomly assigned to the PAs who should determine what intervention would be most optimal to the patient (rehabilitation, injections, medications, surgery, primary care psychology, primary care physical therapy). PAs were allowed to advise more than one intervention. Per vignette, 3 PAs were assigned randomly to advise on intervention. Fleish kappas were calculated to determine the interrater reliability.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 23 - 23
1 Sep 2019
Munir S Freidin M Rade M Määttä J Livshits G Williams F
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Background

Endplate defect is an MRI trait, found to be associated with intervertebral disc degeneration. There is a lack of understanding regarding the mechanism underlying lumbar disc degeneration (LDD). This large-scale longitudinal population-based study aimed to determine the order of appearance of degenerative change in the vertebral body and intervertebral disc, the influence of endplate degeneration on LBP and whether there is a genetic influence on endplate damage.

Methods

Individuals from the TwinsUK spine study having longitudinal T2-weighted lumbar MRI scans at baseline (n=996) and a decade later (n=438) were included. LDD, vertebral endplate defect expressed as a total endplate (TEP) score and Modic change (MC) were assessed using standard techniques. Mixed-effects models were used to determine the association between spine pathology features adjusted for covariates. Endplate defect heritability was estimated using variance component analysis.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 30 - 30
1 Sep 2019
Harrisson S Ogollah R Dunn K Foster N Konstantinou K
Full Access

Background

There is a paucity of prognosis research in patients with neuropathic low back-related leg pain (LBLP) in primary care.

Purpose

To investigate the clinical course and prognostic factors in primary care LBLP patients consulting with neuropathic pain (NP).


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 33 - 33
1 Sep 2019
Dutmer A Reneman M Wolff A Soer R Preuper HS
Full Access

Introduction

A minority of patients with chronic low back pain (CLBP) account for a majority of disability and costs. This subgroup has potentially most to gain from effective treatment. The Groningen Spine Cohort will provide a 10-year prospective insight into the burden of CLBP for patients referred to multispecialty tertiary spine care in the Netherlands. This study reports first baseline results.

Objective

To study the personal and societal impact of CLBP in patients visiting the UMCG tertiary spine center.


The Bone & Joint Journal
Vol. 101-B, Issue 4 | Pages 470 - 477
1 Apr 2019
Fjeld OR Grøvle L Helgeland J Småstuen MC Solberg TK Zwart J Grotle M

Aims

The aims of this study were to determine the rates of surgical complications, reoperations, and readmissions following herniated lumbar disc surgery, and to investigate the impact of sociodemographic factors and comorbidity on the rate of such unfavourable events.

Patients and Methods

This was a longitudinal observation study. Data from herniated lumbar disc operations were retrieved from a large medical database using a combination of procedure and diagnosis codes from all public hospitals in Norway from 1999 to 2013. The impact of age, gender, geographical affiliation, education, civil status, income, and comorbidity on unfavourable events were analyzed by logistic regression.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 1 - 1
1 Feb 2018
Chen Y Campbell P Strauss V Foster N Jordan K Dunn K
Full Access

Background and objectives

Low back pain (LBP) is a major health challenge globally. Research has identified common trajectories of pain over time. We aimed to investigate whether trajectories described in one primary care cohort can be confirmed in another, and to determine the prognostic value of factors collected 5 years prior to the identification of the trajectory.

Methods and results

The study was carried out on 281 patients who had consulted primary care for LBP, at that point completed a baseline questionnaire, and then returned a questionnaire at 5-years follow-up plus at least 3 (of 6) subsequent monthly questionnaires. Baseline factors were measured using validated tools. Pain intensity scores from the 5-year follow-up and monthly questionnaires were used to cluster participants into 4 previously derived pain trajectories (no or occasional mild, persistent mild, fluctuating, persistent severe), using latent class analysis. Posterior probabilities of belonging to each cluster were estimated for each participant. The posterior probabilities for the assigned clusters were very high (>0.90) for each cluster except for the smallest ‘fluctuating’ cluster (0.74). Lower social class (OR 2.9; 95% CI 1.2, 7.0), higher pain intensity (1.6 per unit; 1.2, 2.2), and pain duration greater than 3 years (2.7; 1.0, 7.3), were significantly associated with a more severe trajectory 5-years later, as were higher physical disability, emotional impact of pain, and perception pain will last a long time.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 4 - 4
1 Feb 2018
Abbey H Nanke L
Full Access

Background

Chronic pain is a complex condition that demonstrates better outcomes in multidisciplinary rehabilitation, typically delivered to groups of patients by tertiary healthcare teams. An inter-disciplinary pain management course for individual patients was developed to increase the scope of physical therapists working in primary care by integrating osteopathic manual therapy with psychological interventions from Acceptance and Commitment Therapy (ACT), a form of ‘3rd wave’ Cognitive Behaviour Therapy.

Method and Results

A single cohort study with pre-course (n=180) and post-course (n=79) self-report measures (44% response rate) evaluated six week interventions which combined individual manual therapy with self-management, delivered by teams of qualified and student osteopaths. Data included: quality of life (European Quality of Life Questionnaire); pain, mood and coping (Bournemouth Questionnaire); psychological flexibility (Revised Acceptance and Action Questionnaire); and mindfulness (Freiburg Mindfulness Inventory). Participants were predominantly female (68%), unemployed (59%), with an average age of 49 and pain duration of more than 12 months (86%). Commonly reported symptoms were low back pain (82%), neck pain (60%) and multiple sites (86%). At six months, there were statistically significant improvements in all four outcome measures (p<0.0005), with promising effect sizes in quality of life and pain coping (r=0.52) which appeared to be mediated by changes in psychological flexibility.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 22 - 22
1 Feb 2018
Ryan C Roberts L
Full Access

Background and purpose of the study

Patients with sciatica experience high levels of disability and poor outcomes and treatment has demonstrated, at best, only modest success. To be effective, management strategies must be informed by patients' perceptions about ‘what matters’ about experiencing this condition. The aim of this paper is to explore the lived experience of sciatica and to consider the implications for clinical practice.

Methods and results

In this qualitative study, based on the principles of interpretative phenomenological analysis, 14 participants with a clinical presentation of sciatica of likely nerve root origin were purposively recruited from an NHS, Primary Care Musculoskeletal Service in the UK. Individual, semi-structured interviews were used to collect data, which were audio-recorded and transcribed verbatim. Data were managed using a framework approach and analysed thematically.

Sciatica was experienced as a protracted journey of acute exacerbations of uncontrolled and incapacitating symptoms that were overwhelming and difficult to make sense of. Adversely affecting almost all aspects of life, participants struggled to maintain their physical, functional and financial independence; their important relationships; social networks and the roles and activities that provided joy and purpose. The impact of sciatica was a ‘life on hold’; an altered sense of self and an uncertain future. For three participants, the experience of sciatica was sufficiently distressing for them to contemplate suicide.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 36 - 36
1 Feb 2018
Alotaibi M Nair R Radford K
Full Access

Purpose

This research project explored the experiences, attitudes, beliefs, and perceptions of healthcare professionals (physiotherapists and orthopaedic surgeons) and people with chronic low back pain (CLBP) regarding the barriers and facilitators to activity normalisation following physiotherapy.

Methods

A qualitative study of the perspectives of patients, physiotherapists and orthopaedic surgeons on CLBP was undertaken in Saudi Arabia. One focus group discussion was conducted with seven patients who had received physiotherapy for CLBP, along with one focus group discussion with eight physiotherapists and seven individual interviews with orthopaedic surgeons. The focus group discussions and interviews were transcribed and analysed using framework analysis.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 37 - 37
1 Feb 2018
Craddock R Hodson N Cartmell S Razaaq A Sherratt M Hoyland J
Full Access

Introduction

Given the predominant functional role which aggrecan has in the intervertebral disc, particularly within the nucleus pulposus, it is necessary to evaluate the quality of aggrecan produced by cells within tissue engineered disc constructs. The aim here was to characterise the nanostructure of aggrecan synthesised by nucleus pulposus cells treated with growth differentiation factor [GDF]-6) seeded in hydrogels in comparison to aggrecan isolated from healthy disc.

Methods

Aggrecan was isolated from bovine nucleus pulposus (NP) tissue (n=3 [<18 months old]) and primary bovine NP cells cultured with (+GDF6) or without GDF6 (−GDF6) for 28 days (n=2) in type I collagen hydrogels. Isolated aggrecan monomers were visualised by atomic force microscopy and categorised as either intact (globular domains visible at both the N and C termini) or non-intact. Core protein contour length (LCP) was calculated for intact molecules. The proportion of non-intact/fragmented to intact aggrecan and the molecular area of all monomers was determined.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 43 - 43
1 Feb 2018
Fawkes C Froud R Carnes D
Full Access

Background to the study

The use of Patient Reported Outcome Measures (PROMs) to measure effectiveness of care, and supporting patient management is being advocated increasingly. When evaluating outcome it is important to identify a PROM with good measurement properties.

Purpose of the study

To review the measurement properties of the low back and neck versions of the Bournemouth Questionnaire.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 11 - 11
1 Feb 2018
Savergnini G Vogel S
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Purpose and background

Pain related distress is associated with poor low back pain outcomes, and is challenging for practitioners to address. This study investigated osteopaths' beliefs about the relationship between chronic pain (CP) and distress (D). The research aimed to explore how patient's distress is understood and managed by osteopath educator clinicians with an interest in the field.

Methods and results

A qualitative research design using a constructivist grounded theory analytical approach was used to analyse semi-structured interviews. A purposive sample of seven osteopaths working at the British School of Osteopathy (BSO) with experience with CP-D was recruited. Data collection and analysis were carried out simultaneously. Audio-recording, verbatim-transcriptions, memos-writing and diary-keeping were used to develop themes and theory.

Three main themes were identified: osteopaths understanding of the CP-D presentation, evaluation and assessment of the CP-D patient, the role of the osteopath and therapist-patient interaction in CP-D treatment. Three sub-themes were developed for each theme.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 14 - 14
1 Feb 2018
Alreni A McLean S Demack S Harrop D Kilner K
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Background and objectives

Numerous approaches are recommended for the management of non-specific neck pain (NS-NP). However, the extent to which approaches are used is unclear. This survey investigated current UK physiotherapists' measurement and management of patients with NS-NP.

Methods and results

Physiotherapists were invited to participate in an online survey if they were practicing in the UK and had experience of managing NS-NP. 2101 responses were received. Analysis of the results indicated the overall popularity of active treatment approaches with 84% and 61% of respondents employing exercise and patient education respectively. 48% of respondents reported using a multimodal approach (that is, combination of exercise and manual therapy with/without patient education). Over a third of respondents reported not using outcome measures (OMs) for NS-NP. Of the two-thirds who reported using OMs, the majority reported using pain and range of motion measures. Physical and functional limitations, psychological distress, and quality of life constructs, which are frequently associated with NS-NP, were rarely measured.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 33 - 33
1 Feb 2018
Richardson S Rodrigues-Pinto R Hoyland J
Full Access

Background

While the human embryonic, foetal and juvenile intervertebral disc (IVD) is composed of large vacuolated notochordal cells, these morphologically distinct cells are lost with skeletal maturity being replaced by smaller nucleus pulpous cells. Notochordal cells are thought to be fundamental in maintaining IVD homeostasis and, hence, their loss in humans may be a key initiator of degeneration, leading ultimately to back pain. Therefore, it is essential to understand the human notochordal cell phenotype to enable the development of novel biological/regenerative therapies.

Methods

CD24+ notochordal cells and CD24- sclerotomal cells were sorted from enzymatically-digested human foetal spines (7.5–14 WPC, n=5) using FACS. Sorting accuracy was validated using qPCR for known notochordal markers and Affymetrix cDNA microarrays performed. Differential gene expression was confirmed (qPCR) and Interactive Pathway Analysis (IPA) performed.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 30 - 30
1 Feb 2018
Bartys S Stochkendahl M Buchanan E
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Background

Work disability due to low back pain (LBP) is a global concern, resulting in significant healthcare costs and welfare payments. In recognition of this, recent UK policy calls for healthcare to become more ‘work-focused’. However, an ‘evidence-policy’ gap has been identified, resulting in uncertainty about how this is to be achieved. Clear, evidence-based recommendations relevant to both policy-makers and healthcare practitioners are required.

Methods

A policy theory approach combining scientific evidence with governance principles in a pragmatic manner was undertaken. This entailed extracting evidence from a recent review of the system influences on work disability due to LBP* (focused specifically on the healthcare system) and appraising it alongside the most recent review evidence on the implementation of clinical guidance, and policy material aimed at developing work-focused healthcare.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 34 - 34
1 Feb 2018
Richardson S Hodgkinson T Hoyland J
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Background

Currently, there is a focus on the development of cell based therapies to treat intervertebral disc (IVD) degeneration, particularly for regenerating/repairing the central region, the nucleus pulposus (NP). Recently, we demonstrated that GDF6 promotes NP-like differentiation in mesenchymal stem cells (MSCs). However, bone marrow- (BM-MSCs) and adipose- (Ad-MSCs) showed differential responses to GDF6, with Ad-MSCs adopting a more NP-like phenotype. Here, we investigated GDF6 signalling in BM-MSCs and Ad-MSCs, with the aim to improve future IVD stem cell therapies.

Methods

GDF6 receptor expression in patient-matched BM-MSCs and Ad-MSCs (N=6) was profiled through western blot and immunocytochemistry (ICC). GDF6 signal transduction was investigated through stimulation with 100 ng ml−1 GDF6 for defined time periods. Subsequently smad1/5/9 phosphorylation and alternative non-smad pathway activation (phospho-p38; phospho-Erk1/2) was analysed (western blot, ELISA). Their role in inducing NP-like gene expression in Ad-MSCs was examined through pathway specific inhibitors.


Purpose and background

Identifying features in nonspecific low back pain (NSLBP) subjects that distinguish them from controls, or for elucidating subgroups, has proved elusive. Yet these would be helpful to monitor progress, improve management, and understand the nature of the condition. Previous work using quantitative videofluoroscopy (QF) has indicated that the distribution of motion between lumbar intervertebral joints is more uneven in those with a history of NSLBP. However, there maybe other features of these complex motion patterns yet to be revealed. A multivariate analysis was therefore carried out to explore other possible differences.

Methods and results

Intervertebral motion data of L2/3 to L4/5, from a previously published study was used. This examined 40 patients with NSLBP and 40 healthy controls, matched for gender, age and body mass index, who underwent passive recumbent QF in the coronal and sagittal planes. For each motion direction, principal components analysis was carried out and salient dimensions selected. Using a lower dimensional principal components (PC) representation, groups were compared using Hoteling's T test. Linear and quadratic discriminant analysis (LDA and QDA) was carried out using PC representations to examine group differences. The features most clearly distinguishing groups from the LDA was examined graphically. An analysis of the sensitivity of the results to the number of PC dimensions was carried out. The performance of the LDA and QDA classifiers were examined using leave-one-out cross-validation.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 5 - 5
1 Feb 2018
Braeuninger-Weimer K Anjarwalla N Weerasinghe T Lunn M Das S Mohammed H Pincus T
Full Access

Background

Previous research in people with musculoskeletal low back pain (MLBP) in primary care shows that a reliable and valid measure of consultation-based reassurance enables testing reassurance against patient' outcomes. Little is known about the role of reassurance in people with MLBP consulting spinal surgeons, especially in cases where surgeons recommend not to have surgery. There might be several reasons to exclude surgery as a treatment option, that range from positive messages about symptoms resolving to negative messages, suggesting that all reasonable avenue of treatment have been exhausted.

AIM to explore patient's experience of consultation-based reassurance in people with MLBP who have been recently advised not to have surgery.

Methods

Semi-structured interviews were conducted with 30 low back pain patients who had recently consulted for spinal surgery and were advised that surgery is not indicated. Interview were audio recorded and transcribed, and then coded using NVIVO qualitative software and analysed using the Framework Analysis.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 9 - 9
1 Feb 2018
Serbic D Ferguson L Smith M Thomas G Pincus T
Full Access

Purpose of the study and background

Although pain is usually described as a private experience, how pain is understood and responded to by others is important. A crucial feature of this process is empathy. The aim of this study was to examine the relationship between empathy for pain and observers' health anxiety and fear of pain. The role of the observer's sex and age were also examined.

Methods and results

In this study 159 participants (73 males, mean age=41, SD=19.6) were presented with 16 images of individuals in pain (8 female, 8 male), and subsequently rated their empathy towards them. Participants then completed the fear of pain and health anxiety measures. Both fear of pain and health anxiety were positively associated with empathy for pain, but in the regression model only fear of pain was a significant positive predictor of empathy for pain (p< .001). Further analysis revealed that when controlling for the effects of fear of pain, the correlation between health anxiety and empathy became non-significant. The same results were found when the overall empathy for pain score was split into empathy for male and female images. Observers' sex and age were not significant predictors of empathy for pain.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 18 - 18
1 Feb 2018
Snuggs J Day R Chiverton N Cole A Bunning R Conner M Tryfonidou M Le Maitre C
Full Access

Introduction

During development the central disc contains large, vacuolated notochordal (NC) cells which in humans are replaced by mature nucleus pulposus (NP) cells during aging, but are maintained in certain breeds of dogs. During degeneration the disc becomes less hydrated which affects its normal function. Aquaporins (AQP) are a family of 13 transmembrane channel proteins that allow passage of water and are responsible for maintaining water homeostasis. AQP1, 2, 3 and 5 have been identified in the intervertebral disc (IVD). Here, expression of AQPs in human and canine IVDs to determine expression in NC v/s NP cells and whether expression changes during degeneration.

Methods

Gene expression of all 13 AQPs, were investigated in 102 human NP samples using RT-qPCR. AQPs which were expressed at gene level were further investigated by Immunohistochemistry in human and canine IVD samples.


Purpose of the study and background

Healthcare practitioners' (HCPs) attitudes and beliefs about MSK pain influence their practice behaviour. The Pain Attitudes and Beliefs Scale (PABS), developed for use in the context of LBP, consists of two subscales (biomedical and biopsychosocial) is the most widely used measure. However, poor performance of the biopsychosocial orientation scale is attributed, in part, to inadequate conceptualisation of the orientation.

Purpose

To develop a new biopsychosocial scale and adapt the PABS to assess HCPs' attitudes and beliefs about common MSK pain.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 6 - 6
1 Feb 2018
Richardson S Hodgkinson T White L Shakesheff K Hoyland J
Full Access

Background

Stem cell therapy has been suggested as a potential regenerative strategy to treat IVD degeneration and GDF6 has been shown to differentiate adipose-derived stem cells (ASCs) into an NP-like phenotype. However, for clinical translation, a delivery system is required to ensure controlled and sustained GDF6 release. This study aimed to investigate the encapsulation of GDF6 inside novel microparticles (MPs) to control delivery and assess the effect of the released GDF6 on NP-like differentiation of human ASCs.

Methods

GDF6 release from PLGA-PEG-PLGA MPs over 14 days was determined using BCA and ELISA. The effect of MP loading density on collagen gel formation was assessed through SEM and histological staining. ASCs were cultured in collagen hydrogels for 14 days with GDF6 delivered exogenously or via microspheres. ASC differentiation was assessed by qPCR for NP markers, glycosaminoglycan production (DMMB) and immunohistochemistry.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 8 - 8
1 Feb 2018
Osei N
Full Access

Purposes of study and background

The study aim is to evaluate the efficacy of dynamic MRI scanning in identifying radiological causes of positional sciatica over a 5-year period.

Summary of methods used and the results

We describe the results of a prospective series of patients who completed open MRI scanning, indicated for lower back pain and positional sciatica. 40 open MRI scans were requested between March 2012 and March 2017. 31 patients were intolerant to conventional MRI Scanning due to either claustrophobia or the inability to lie flat. 9 patients were identified as having positional sciatica. All patients completed the Oswestry Disability Index as part of their clinical assessment. The MRI images and radiology report were reviewed to identify surgically relevant causes. Dynamic foraminal narrowing and a progressive disc protrusion were identified in 2 patients who presented with positional sciatica. 23% of patients who were scanned had positional sciatica. 5% of patients indicated for open MRI scanning demonstrated surgically relevant changes on dynamic MRI scanning. 22% of those with positional sciatica demonstrated surgically relevant pathology on dynamic scanning.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 28 - 28
1 Feb 2018
Harrisson S Ogollah R Dunn K Foster N Konstantinou K
Full Access

Background

Patients with low back-related leg pain (LBLP) can present with neuropathic pain; it is not known but is often assumed that neuropathic pain persists over time. This research aimed to identify cases with neuropathic pain that persisted at short, intermediate and longer-term time points, in LBLP patients consulting in primary care.

Methods

LBLP patients in a primary care cohort study (n=606) completed the self-report version of Leeds Assessment for Neurological Symptoms and Signs (s-LANSS, score of ≥12 indicates possible neuropathic pain) at baseline, 4-months, 12-months and 3-years. S-LANSS scores and percentages of patients with score of ≥12 are described at each time-point. Multiple imputation was used to account for missing data.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 27 - 27
1 Feb 2018
Zemedikun D Roberts T Artus M Guariglia A Kigozi J Wynn-Jones G
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Purpose

This review aims to explore the methodologies used for estimating the direct and indirect costs attributed to back pain in developed countries.

Methods

Six databases were searched to uncover studies about the direct and indirect costs of back pain published in English upto November 2016. Data extracted included study characteristics, cost categories and analysis methods. Results were synthesised descriptively.


Bone & Joint Research
Vol. 7, Issue 2 | Pages 124 - 130
1 Feb 2018
Coric D Bullard DE Patel VV Ryaby JT Atkinson BL He D Guyer RD

Objectives

Pulsed electromagnetic field (PEMF) stimulation was evaluated after anterior cervical discectomy and fusion (ACDF) procedures in a randomized, controlled clinical study performed for United States Food and Drug Administration (FDA) approval. PEMF significantly increased fusion rates at six months, but 12-month fusion outcomes for subjects at elevated risk for pseudoarthrosis were not thoroughly reported. The objective of the current study was to evaluate the effect of PEMF treatment on subjects at increased risk for pseudoarthrosis after ACDF procedures.

Methods

Two evaluations were performed that compared fusion rates between PEMF stimulation and a historical control (160 subjects) from the FDA investigational device exemption (IDE) study: a post hoc (PH) analysis of high-risk subjects from the FDA study (PH PEMF); and a multicentre, open-label (OL) study consisting of 274 subjects treated with PEMF (OL PEMF). Fisher’s exact test and multivariate logistic regression was used to compare fusion rates between PEMF-treated subjects and historical controls.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 21 - 21
1 Feb 2018
Koenders N Rushton A Verra M Willems P Hoogeboom T Staal J
Full Access

Purpose and background

Lumbar spinal fusion (LSF) is frequently and increasingly used in lumbar degenerative disorders despite conflicting results and recommendations. Further understanding of patient outcomes after LSF is required to inform decisions regarding surgery and to improve post-surgery management. The objective was to evaluate the course of pain and disability in patients with degenerative disorders of the lumbar spine (spinal stenosis, spondylolisthesis, disc herniation, discogenic low back pain) after first-time LSF.

Methods and results

A systematic review and meta-analysis of pain and disability outcomes in prospective cohort studies after first time LSF for degenerative disorders. Two independent researchers searched key databases, determined study eligibility, extracted data and assessed risk of bias (modified Quality in Prognostic Studies tool). A third reviewer mediated at each stage. N weighted pooled estimates were calculated. Twenty-five articles (n=1,777 participants) were included. 17 studies were at unclear risk of bias and 8 at high risk. Back pain (12 studies) decreased modestly and irregularly at follow-up intervals. The n weighted mean VAS back pain decreased from 65.4 (±3.3) pre-surgery to 22.2 (±3.1) at 23 months, but then 45.0 (±not reported; 2 studies at risk of bias) at 42 months. In contrast, leg pain (12 studies) improved substantially short and long-term. Disability (20 studies) improved steadily over time with the exception of the 42-months and 48-months intervals.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 42 - 42
1 Feb 2018
Rushton A Evans D Middlebrook N Heneghan N Falla D
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Introduction

Pain is an expected and appropriate experience following traumatic musculoskeletal injury. By contrast, chronic pain and disability are unhelpful yet common sequelae of trauma-related injuries. Presently, the mechanisms that underlie the transition from acute to chronic disabling post-traumatic pain are not fully understood. The aim of this study is to identify prognostic factors for risk of developing chronic pain and disability following acute musculoskeletal trauma.

Methods

A prospective observational study will recruit two temporally staggered cohorts (n=250 each cohort; 10 cases per candidate predictor) of consecutive acute musculoskeletal trauma patients aged ≥16 years, who are emergency admissions into a Major Trauma Centre in the United Kingdom, with an episode inception defined as the traumatic event. The first cohort will identify prognostic factors to develop a screening tool to predict development of chronic and disabling pain, and the second will allow evaluation of the predictive performance of the tool (validation). The outcome being predicted is an individual's absolute risk of poor outcome measured at 6-months follow-up using the Chronic Pain Grade Scale (poor outcome ≥Grade II). Candidate predictors encompass the four primary mechanisms of pain: nociceptive (e.g. injury characteristics), neuropathic (e.g. painDETECT), inflammatory (biomarkers), and central hypersensitivity (e.g. quantitative sensory testing). Concurrently, patient-reported outcome measures will assess general health and psychosocial factors. Risk of poor outcome will be calculated using multiple variable regression analysis.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 15 - 15
1 Feb 2018
Steele J Fisher J Bruce-Low S Smith D Osborne N Newell D
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Purpose and Background

Strengthening the lumbar extensor musculature is a common recommendation for CLBP. Although reported as effective, variability in response in CLBP populations is not well investigated. This study investigated variability in responsiveness to isolated lumbar extension (ILEX) resistance training in CLBP participants by retrospective analysis of 3 RCTS.

Methods and Results

Data from 77 intervention participants was available (males = 43, females = 34) 37 control participants (males = 20, females = 17). Intervention participants all underwent 12wks of ILEX resistance training and changes in ILEX strength, pain (VAS) and disability (ODI) measured. True inter-individual response variability was examined through calculation of difference in the standard deviation of change scores for both control and intervention. Intervention participants were classified into using k-means cluster analysis for strength changes and using MCIC cut-offs for VAS and ODI. Analysis suggested true inter-individual responses to the intervention existed. Participants were classified for strength changes as low (n = 31), medium (n = 36), and high responders (n = 10). Participants were classified for VAS changes as negative (n = 3), non-responders (n = 34), responders (n = 15), and high responders (n = 19). Participants were classified for ODI changes as negative (n = 2), non-responders (n = 21), responders (n = 29), and high responders (n = 25).


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 17 - 17
1 Feb 2018
Thorpe A Vickers L Charlton F Cole A Chiverton N Sammon C Le Maitre C
Full Access

Background

Intervertebral disc (IVD) degeneration is a major cause of Low back pain (LBP). We have reported an injectable hydrogel (NPgel), which following injection into bovine NP explants, integrates with NP tissue and promotes NP cell differentiation of delivered mesenchymal stem cells (MSCs) without growth factors. Here we investigated the injection of NPgel+MSCs into bovine NP explants under degenerate culture conditions to mimic the in vivo environment of the degenerate IVD.

Methods

hMSCs were incorporated within liquid NPgel and injected into bovine NP explants alongside controls. Explants were cultured for 6 weeks under hypoxia (5%) with ± calcium 5.0mM CaCl2 or IL-1β individually or in combination to mimic the degenerate microenvironment. Cell viability was assessed by caspase 3 immunohistochemistry. Histological and immunohistochemical analysis was performed to investigate altered matrix synthesis and matrix degrading enzyme expression.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 20 - 20
1 Feb 2018
Pavlova A Muthuri S Saunders F Hardy R Gregory J Barr R Martin K Adams J Kuh D Cooper R Aspden R
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Purpose

To investigate associations between sagittal thoracolumbar spine shape with sex and measures of adiposity throughout adulthood.

Methods

Thoracolumbar spine shape was characterised using statistical shape modelling on lateral dual-energy x-ray absorptiometry images, recorded for vertebral fracture analysis, of the spine from 1529 participants of the MRC National Survey of Health and Development, acquired at age 60–64 years. Associations between spine shape modes (SM) and 1) sex, 2) contemporaneous measures of overall and central adiposity (indicated by body mass index and waist circumference, respectively), 3) changes in total and central adiposity during earlier stages of adulthood and age at onset of overweight, were investigated.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 10 - 10
1 Feb 2018
Alothman D Sheeran L Sparkes V
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Purpose of the Study

To develop an online self-assessment and self-management tool (BACKonLINE™) for discerning between people with characteristics of predominantly centrally (CD) or peripherally (PD) driven LBP.

Background

Low back pain (LBP) may worsen with time, making appropriate treatment important. In the NHS Physiotherapy services LBP patients may wait for 14–24 weeks for treatments. Many factors contribute to LBP, but it is predominantly initially viewed as a result of peripheral tissue damage. However, evidence show that persistent LBP is associated with amplification in pain processing in the central nervous system (central sensitisation). Sometimes, this may drive symptoms, resulting in poorer outcomes and requiring longer management. Timely assessment and appropriate management is therefore paramount.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 13 - 13
1 Feb 2018
Perrin C Bruce-Low S Arnold J Burnet S Holloway S Steele J
Full Access

Background & Purpose

The co-ordinated contraction of the kinetic chain is responsible for the dissipation of force. Weakness in the kinetic chain, such as the posterior oblique sling (POS), may increase the demand on additional muscles, such as the hamstrings, to compensate. The lumbar extensors may be particularly vulnerable in the kinetic chain, as they appear difficult to strengthen due to the dominant hip extensors. Therefore, this study aimed to investigate whether participants with a history of hamstring injuries presented with low back pain because of greater deficits in lumbar extensor strength, and impaired co-ordination of the POS.

Methods

Twenty male footballers were recruited (n: Injured- 9, Controls- 11). Isolated lumbar extension strength, low back pain, and the contraction time of muscles within the POS during a hip extension test were recorded. Participants were then grouped in either the injury or control group.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 3 - 3
1 Feb 2018
Cherkin D Hill J Sowden G Foster N
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Purpose & Background

The STarT Back risk-stratification approach uses the STarT Back Tool to categorise patients with low back pain (LBP) at low, medium or high-risk of persistent disabling pain, in order to match treatments. The MATCH trial (NCT02286141) evaluated the effect of implementing an adaptation of this approach in a United States healthcare setting.

Methods

This was a pragmatic cluster randomised trial with a pre-intervention baseline period. Six primary care clinics were pair-randomised, three to an intensive stratified care quality improvement intervention and three as controls. LBP patients were invited to provide outcomes two weeks after their primary care visit, and two and six months later. Primary outcomes were physical function (RMDQ) and pain (0–10 NRS), and secondary outcomes including healthcare use and treatments provided received. Analysis was intention-to-treat.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 7 - 7
1 Feb 2018
Jess M Ryan C Hamilton S Wellburn S Greenough C Ferguson D Coxon A Fatoye F Dickson J Jones A Atkinson G Martin D
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Aims

To investigate whether the duration of pain has an influence on the clinical outcomes of patients with low back pain (LBP) managed through the North East of England Regional Back Pain and Radicular Pain Pathway (NERBPP).

Patients and Methods

The NERBPP is a clinical pathway based upon NICE guidelines (2009) for LBP. Patients with LBP referred onto the NERBPP by their General Practitioner (GP) between May 2015 and January 2017 were included in this evaluation. Data from 635 patients, who provided pre and post data for pain (Numerical rating scale [NRS]), function (Oswestry Disability Index [ODI]) and quality-of-life (EuroQol [EQ5D]), were analysed using a series of covariate adjusted models in SPSS. Patients were categorised into four groups based upon pain duration: <3months, ≥3 to <6months, ≥6months to <12months, ≥12months.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 16 - 16
1 Feb 2018
Thorpe A Freeman C Farthing P Callaghan J Hatton P Brook I Sammon C Le Maitre C
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Background

We have reported an injectable L-pNIPAM-co-DMAc hydrogel with hydroxyaptite nanoparticles (HAPna) which promotes mesenchymal stem cell (MSC) differentiation to bone cells without the need for growth factors. This hydrogel could potentially be used as an osteogenic and osteoconductive bone filler of spinal cages to improve vertebral body fusion. Here we investigated the biocompatibility and efficacy of the hydrogel in vivo using a proof of concept femur defect model.

Methods

Rat sub-cut analysis was performed to investigate safety in vivo. A rat femur defect model was performed to evaluate efficacy. Four groups were investigated: sham operated controls; acellular L-pNIPAM-co-DMAc hydrogel; acellular L-pNIPAM-co-DMAc hydrogel with HAPna; L-pNIPAM-co-DMAc hydrogel with rat MSCs and HAPna. Following 4 weeks, defect site and organs were histologically examined to determine integration, repair and inflammatory response, as well as Micro-CT to assess mineralisation.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 31 - 31
1 Feb 2018
Snidvongs S Taylor R Ahmad A Thomson S Sharma M Fitzsimmons D Poulton S Mehta V Langford R
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Purposes of the study and background

Pain of lumbar facet-joint origin is a common cause of low back pain in adults, and may lead to chronic pain and disability. At present, there is no definitive research to support the use of targeted lumbar facet-joint injections to manage this pain.

The study's objective was to assess the feasibility of carrying out a definitive study to evaluate the clinical- and cost-effectiveness of lumbar facet-joint injections compared to a sham procedure.

Summary of methods and results

This was a blinded parallel two-arm pilot randomised controlled trial. Adult patients referred to the pain and orthopaedic clinics at Barts Health NHS Trust with non-specific low back pain of at least three months' duration were considered for inclusion.

Participants who had a positive result following diagnostic single medial branch nerve blocks were randomised to receive either intra-articular lumbar facet-joint injections with steroid or a sham procedure. All participants were invited to attend a combined physical and psychological programme.

Questionnaires were used to assess a range of pain and disability-related issues. Healthcare utilisation and cost data were also assessed.

Of 628 participants screened for eligibility, 9 were randomised to receive the study intervention and 8 participants completed the study.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 35 - 35
1 Feb 2018
Richardson S Hodgkinson T Shen B Diwan A Hoyland J
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Background

Signalling by growth differentiation factor 6 (GDF6/BMP13) has been implicated in the development and maintenance of healthy NP cell phenotypes and GDF6 mutations are associated with defective vertebral segmentation in Klippel-Feil syndrome. GDF6 may thus represent a promising biologic for treatment of IVD degeneration. This study aimed to investigate the effect of GDF6 in human NP cells and critical signal transduction pathways involved.

Methods

BMP receptor expression profile of non-degenerate and degenerate human NP cells was determined through western blot, immunofluorescence and qPCR. Phosphorylation statuses of Smad1/5/9 and non-canonical p38 MAPK and Erk1/2 were assessed in the presence/absence of pathway blockers. NP marker and matrix degrading enzyme gene expression was determined by qPCR following GDF6 stimulation. Glycosaminoglycan and collagen production were assessed through DMMB-assay and histochemical staining.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 40 - 40
1 Feb 2018
Birkinshaw H Bartlam B Saunders B Hill J
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Purpose of Study and Background

Population ageing will facilitate an increase in health problems common in older adults, such as musculoskeletal conditions. Musculoskeletal conditions are the fourth largest contributor to disease burden in older adults; affecting quality of life, physical activity, mental wellbeing and independence. Therefore primary care health services must provide appropriate and efficacious management and treatment. However there are a number of complexities specific to older adults that are essential to address.

Methods and Results

In order to identify these complexities, a review of the background literature was undertaken in addition to a Patient and Public Involvement and Engagement (PPIE) session. The PPIE group consisted of eight older adults who experience chronic musculoskeletal pain. This session was used to discuss and explore what factors are important to consider in GP consultations for musculoskeletal pain for older adults, in addition to those identified through background literature. A number of factors were highlighted through these methods, including the difference in mood and aspirations for older adults; taking a holistic approach; the impact of comorbidities; whether the GP is listening and ‘on the same wavelength’, and older adults' expectations regarding their pain and the consultation.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 19 - 19
1 Feb 2018
Owen S Thompson C McGlashan S Knight M Ockendon M Roberts S
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Introduction

Primary cilia are singular structures containing a microtubule-based axoneme which are believed to not only be mechanosensitive but also to co-ordinate many cell functions via signalling pathways including Hedgehog and Wnt. Primary cilia have previously been described on cells of mouse intervertebral discs (IVDs), but not in bovine or human IVDs. Our aim was to examine primary cilia in these species.

Methods

Nucleus pulposus cells were obtained from cows with no overt disc degeneration and patients following spine surgery (for herniations and/or degenerative disc disease) and cultured until confluent before maintaining with or without serum for 24h. Primary cilia were visualised with antibodies to the axoneme (acetylated α-tubulin and Arl13b) and/or the basal body (pericentrin) using fluorescent secondary antibodies and ≥200 cells per sample were counted.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 24 - 24
1 Feb 2018
Ely S Stynes S Ogollah R Foster N Konstantinou K
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Background

Criticisms about overuse of MRI in low back pain are well documented. Yet, with the exception of suspicion of serious pathology, little is known about factors that influence clinicians' preference for MRI. We investigated the factors associated with physiotherapists' preference for MRI for patients consulting with benign low back and leg pain (LBLP) including sciatica.

Methods

Data were collected from 607 primary care patients consulting with LBLP and assessed by 7 physiotherapists, in the ATLAS cohort study. Following clinical assessment, physiotherapists documented whether he/she wanted the patient to have an MRI. Factors potentially associated with clinicians' preference for imaging were selected a priori, from patient characteristics and clinical assessment findings. A mixed-effect logistic regression model examined the associations between these factors and physiotherapists' preference for MRI.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 23 - 23
1 Feb 2018
Ryan C Roberts L
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Background and purpose of the study

Uncertainty remains regarding the optimal method of diagnosing sciatica. Clinical guidelines currently recommend that investigations be used only when they are likely to change management. In clinical practice, considerable variation can occur between patient and clinician, regarding the perceived importance of investigations such as MRI scans. The aim of this study was to explore patients' experiences of investigations and to consider the impact of concordance between clinical presentation and investigation findings.

Methods and results

In this qualitative study, based on the principles of interpretative phenomenological analysis, 14 participants with a clinical presentation of sciatica of likely nerve root origin, who had recently undergone investigations, were purposively recruited from an NHS, Primary Care Musculoskeletal Service in the UK. Individual, semi-structured interviews were used to collect data, which were audio-recorded and transcribed verbatim. Data were managed using a framework approach and analysed thematically.

Although patients reported wanting investigations to understand the cause of symptoms and inform management, access to them was difficult and protracted. When investigations revealed potentially relevant findings, patients experienced relief, validation, empowerment and decisive decision-making. Disappointment emerged, however, regarding treatment waiting times and options, and long-term prognosis. When investigations failed to identify relevant findings, patients were unable to make sense of their symptoms, move forward in their management or relinquish their search to identify the cause.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 25 - 25
1 Feb 2018
Konstantinou K Rimmer Y Huckfield L Stynes S Burgess N Foster N
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Background

Recruitment to time and target in clinical trials is a key challenge requiring careful estimation of numbers of potential participants. The SCOPiC trial ((HTA 12/201/09) (ISRCTN75449581)) is investigating the clinical and cost-effectiveness of stratified care for patients with sciatica in primary care. Here, we describe the approaches followed to achieve recruitment of our required sample size (n=470), the challenges encountered and required adaptations.

Methods

We used recruitment data from the SCOPiC trial and its internal pilot, to show the differences between estimated and actual numbers of patients from consultation to participation in the trial. Patients were consented to the trial if they had a clinical diagnosis of sciatica (with at least 70% confidence) and met the trial eligibility criteria.


Background

Psychosocial (PS) factors have been described as the combination of the individual's cognitive, emotional and social status and they play an important role in the development and recovery from chronic low back pain (CLBP). The aims of the study where to explore/describe physiotherapists' personal beliefs and knowledge in relation to the assessment of PS factors in patients with CLBP in Italy.

Methods and results

A qualitative research design with a constructivist grounded theory approach was used for semi-structured interviews and data collection/analysis. A purposive sample of eight physiotherapists practicing in Italy and having experience with patients presenting chronic musculoskeletal problems were recruited from private clinics.

Three main categories were constructed:

Conceptions of the biopsychosocial model and its role in CLBP;

Evaluation and management of PS factors;

Barriers in the assessment and treatment.

The study revealed partial identification of these factors, limited understanding of the role they play in CLBP and lack of standardization in this area within the manipulative physiotherapy profession.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 39 - 39
1 Feb 2018
Humphreys M Richardson S Hoyland J
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Background

Intervertebral disc degeneration is implicated as a major cause of chronic lower back pain. Current therapies for lower back pain are aimed purely at relieving the symptoms rather than targeting the underlying aberrant cell biology. As such focus has shifted to development of cell based alternatives. Notochordal cells are progenitors to the adult nucleus pulposus that display therapeutic potential. However, notochordal cell phenotype and suitable culture conditions for research or therapeutic application are poorly described. This study aims to develop a suitable culture system to allow comprehensive study of the notochordal phenotype.

Methods & Results

Porcine notochordal cells were isolated from 6 week post natal discs using dissection and enzymatic digestion and cultured in vitro under different conditions: (1)DMEM vs αMEM (2)laminin-521, fibronectin, gelatin and untreated tissue culture plastic (3)2% 02 vs normoxia (4)αMEM (300 mOsm/L) vs αMEM (400 mOsm/L). Notochordal cells were cultured in alginate beads as a control. Adherence, cell viability, morphology and expression of known notochordal markers (CD24, KRT8, KRT18, KRT19 and T) were assessed throughout the culture period. Use of αMEM media and laminin-521 coated surfaces displayed the greatest cell adherence, viability and retention of notochordal cell morphology and gene expression, which was further enhanced through culture in hypoxia and hyperosmolar media mimicking the intervertebral disc niche.


Summary

Each patient received Cognitive Reassurance appropriate for and proportionate to his/her capacity through evidence informed explanation/education to enhance effective self-care and realistic self-management.

Background and pathway

Changes to back and neck pain commissioning by our CCG required GPs not to refer to manual therapy until six weeks and upgrade GP care beyond that previous.

100 consecutive patients requesting GP appointment reporting back/neck pain were directed to a pragmatic service provided by an experienced manual therapy practitioner. Cognitive Reassurance reflecting evidenced informed biopsychosocial and salutogenic thinking was given at initial consultation/assessment. Patients were contacted at 10 and 20 days to ascertain their status. One sub-group suggested an opportunity for long-term follow-up.

Pilot Objectives

Providing Cognitive Reassurance for achieving greater levels of patient engagement with self-management

Demonstrate full clinical triage by primary care providers is effective/practical

Demonstrate a need for appropriate contracting models

————————–

Outcomes 100 patients

Wait time 2d
Inappropriate self-referral directed to GPs 25%
DNAs 7%
Referral for medication – 28%
Prescribed AQP manual therapy 35%

Outcomes 36 patients decided at 20 days no further treatment needed

Treatments averaged1.8/pt (Range 0–4)
Patients deciding no treatment needed beyond initial consultation4%
Patients requesting further consultation during the 12 months following:4%


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 29 - 29
1 Feb 2018
Chiarotto A Boers M Deyo R Buchbinder R Corbin T Costa L Foster N Grotle M Koes B Kovacs F Lin C Maher C Pearson A Peul W Schoene M Turk D van Tulder M Terwee C Ostelo R
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Background & purpose

Measurement inconsistency across clinical trials is tackled by the development of a core outcome measurement set. Four core outcome domains were recommended for clinical trials in patients with non-specific LBP (nsLBP): physical functioning, pain intensity, health-related quality of life (HRQoL), and number of deaths. This study aimed to reach consensus on core instruments to measure the first three domains.

Methods & Results

The Steering Committee overseeing this project selected 17 potential core instruments for physical functioning, three for pain intensity, and five for HRQoL. Evidence on their measurement properties in nsLBP was synthesized in three systematic reviews using COSMIN methodology. Researchers, clinicians, and patients (n = 208) were invited in a Delphi survey to seek consensus on which instruments to endorse as core. Consensus was a-priori set at 67% of participants agreeing on endorsing an instrument. Two Delphi rounds were run (response rates = 44% and 41%). Agreement was reached on endorsing the Oswestry Disability Index (ODI 2.1a) for physical functioning, the Numeric Rating Scale (NRS) for pain intensity, but not on other instruments. Several participants demanded to have free of charge core instruments. Taking these results into account, the steering committee formulated the following recommendations: ODI 2.1a or 24-item Roland Morris Disability Questionnaire for physical functioning, NRS for pain intensity, Short-Form 12 or 10-item PROMIS Global Health for HRQoL.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 32 - 32
1 Feb 2018
Alhowimel A Coulson N Radford K
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Background

Almost 80% of people experience low back pain at least once in their life. A quarter suffers from Nonspecific Chronic Low Back Pain (NS-CLBP), where symptoms cannot be justified radiologically. There is evidence that imaging negatively impacts outcomes (increased painkillers and doctors' visits) in NS-CLBP patients. Despite clinical guidelines recommending against the use of imaging, healthcare practitioners and patients still request imaging to explain symptoms.

Method

Qualitative, semi-structured interviews with NS-CLBP patients, physiotherapists, and doctors conducted using purposeful sampling of 6–11 people from each group. The interviews were recorded, transcribed and analysed using framework analysis. Validity was ensured by data triangulation with participants.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 12 - 12
1 Feb 2018
Sugavanam T Fordham B Hansen Z Williamson E Boniface G Usama A Richmond H Lamb S
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Purpose of study

To evaluate implementation of the Back Skills Training (BeST) programme in clinical practice within the National Health Service (NHS).

Background

The BeST programme is a group Cognitive Behavioural Approach (CBA) for people with persistent (≥6 weeks) low back pain (LBP). This intervention has been shown to be clinically and cost-effective in a large pragmatic trial. To aid implementation of the BeST programme, an online training intervention (iBeST) was developed.


Bone & Joint Research
Vol. 7, Issue 1 | Pages 28 - 35
1 Jan 2018
Huang H Nightingale RW Dang ABC

Objectives

Loss of motion following spine segment fusion results in increased strain in the adjacent motion segments. However, to date, studies on the biomechanics of the cervical spine have not assessed the role of coupled motions in the lumbar spine. Accordingly, we investigated the biomechanics of the cervical spine following cervical fusion and lumbar fusion during simulated whiplash using a whole-human finite element (FE) model to simulate coupled motions of the spine.

Methods

A previously validated FE model of the human body in the driver-occupant position was used to investigate cervical hyperextension injury. The cervical spine was subjected to simulated whiplash exposure in accordance with Euro NCAP (the European New Car Assessment Programme) testing using the whole human FE model. The coupled motions between the cervical spine and lumbar spine were assessed by evaluating the biomechanical effects of simulated cervical fusion and lumbar fusion.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 4 - 4
1 May 2017
Angus M Verma R Mohammad S Siddique I Dickens V Rawlinson G
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Background

Low back pain (LBP) with or without leg pain, is one of the most common causes of pain and disability and a frequent cause of attendance to emergency departments (ED). Increasing numbers of patients create a difficult challenge for clinicians to effectively and appropriately manage patients with LBP in an urgent care setting.

Purpose

To improve the management of atraumatic spinal pain patients admitted onto the emergency assessment unit (EAU) thus improving quality of care, reducing bed stay and facilitating appropriate discharge and follow-up within an interdisciplinary model.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 17 - 17
1 May 2017
Stynes S Konstantinou K Ogollah R Hay E Dunn K
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Background

Low back-related leg pain (LBLP) is clinically diagnosed as referred leg pain or sciatica. Within the spectrum of LBLP there may be unrecognised subgroups of patients. This study aimed to identify and describe clusters of LBLP patients using latent class analysis (LCA).

Methods

The study population were 609 LBLP primary care consulters. Variables from clinical assessment were included in the LCA. Characteristics of the statistically identified clusters were described and compared to the clinically defined groups of LBLP patients.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 18 - 18
1 May 2017
Deane J Papi E Phillips A McGregor A
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Introduction

Low back pain (LBP) is the top leading global cause of years lived with disability. In order to examine LBP, researchers have typically viewed the spine in isolation. Clinically, it is imperative that the lower limbs are also considered. The aim of this study was to design a holistic and reliable multi-segmental kinematic model of the spine and lower limbs.

Method

The spine was modelled according to easily identifiable anatomical landmarks, including upper thoracic (T1-T6), lower thoracic (T7-T12) and lumbar (L1-L5) segments. Pelvis, thigh, shank and foot segments were included. A 10-camera 3D motion capture system was used to track retro-reflective markers, which were used to define each segment of 10 healthy participants as they walked 3 times at a comfortable speed over a 6km walkway. The relative peak angles between each segment were calculated using the Joint Coordinate System convention and Intraclass Correlation Coefficients (ICCs) were used to determine intra-rater and inter-rater reliability (between an experienced clinician and biomechanical scientist).


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 19 - 19
1 May 2017
Deane J Joyce L Wang C Wiles C Lim A Strutton P McGregor A
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Introduction

The usefulness of markers of non-specific low back pain (NSLBP), including MRI derived measurements of cross-sectional area (CSA) and functional CSA (FCSA, fat free muscle area) of the lumbar musculature, is in doubt. To our knowledge, such markers remain unexplored in Lumbar Disc Degeneration (LDD), which is significantly associated with NSLBP, Modic change and symptom recurrence. This exploratory 3.0-T MRI study addresses this shortfall by comparing asymmetry and composition in asymptomatic older adults with and without Modic change.

Methods

A sample of 21 healthy, asymptomatic subjects participated (mean age 56.9 years). T2-weighted axial lumbar images were obtained (L3/L4 to L5/S1), with slices oriented through the centre of each disc. Scans were examined by a Consultant MRI specialist and divided into 2 groups dependent on Modic presence (M) or absence (NM). Bilateral measurements of the CSA and FCSA of the erector spinae, multifidus, psoas major and quadratus lumborum were made using Image-J software. Muscle composition was determined using the equation [(FCSA/CSA)*100] and asymmetry using the equation [(Largest FCSA-smallest FCSA)/largest FCSA*100]. Data were analysed using Mann-Whitney U tests (p value set at). Intrarater reliability was examined using Intraclass Correlations (ICCs).


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 25 - 25
1 May 2017
Vickers L Thorpe A Sammon C Le Maitre C
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Introduction

Current strategies to treat back pain address the symptoms but not the underlying cause. Here we are investigating a novel hydrogel material (NPgel) which can promote MSC differentiation to Nucleus pulposus cells. Current in vitro studies have only explored conditions that mimic the native disc microenvironment. Here, we aim to determine the stem cells regenerative capacity under conditions that mimic the degenerate environment seen during disc degeneration.

Methods

hMSCs were encapsulated in NPgel and cultured for 4 weeks under hypoxia (5%) with ± calcium (2.5mM and 5.0mM CaCl2), IL-1β and TNFα either individually or in combination to mimic the degenerate microenvironment. Cell viability was assessed by Alamar blue assay. Histological and immunohistochemical analysis investigated altered matrix and matrix degrading enzyme expression.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 28 - 28
1 May 2017
Zehnder P Fekete T Aghayev E Kleinstück F Becker H Pigott T Banczerowski P Mannion A
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Background

Previous surgery is known to increase the risk of complications during spine surgery, but few studies have quantified the dose-response effect using multivariate models to account for confounders. We quantified the effect of the number of prior spine surgeries on perioperative complications in patients undergoing surgery for lumbar degenerative disorders.

Methods

We included data from 4′940 patients documented in Eurospine's Spine Tango Registry from 2004 to 2015. Medical history and surgical details were documented on the Tango Surgery form, as were surgical and general medical complications arising between admission and discharge. Multiple logistic regression models were built to investigate the relationship between the number of any previous surgeries and the presence of a perioperative complication, controlling for other potential confounders (age, sex, smoking, BMI, comorbidity, number of vertebral levels affected).


Bone & Joint Research
Vol. 6, Issue 5 | Pages 337 - 344
1 May 2017
Kim J Hwang JY Oh JK Park MS Kim SW Chang H Kim T

Objectives

The objective of this study was to assess the association between whole body sagittal balance and risk of falls in elderly patients who have sought treatment for back pain. Balanced spinal sagittal alignment is known to be important for the prevention of falls. However, spinal sagittal imbalance can be markedly compensated by the lower extremities, and whole body sagittal balance including the lower extremities should be assessed to evaluate actual imbalances related to falls.

Methods

Patients over 70 years old who visited an outpatient clinic for back pain treatment and underwent a standing whole-body radiograph were enrolled. Falls were prospectively assessed for 12 months using a monthly fall diary, and patients were divided into fallers and non-fallers according to the history of falls. Radiological parameters from whole-body radiographs and clinical data were compared between the two groups.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 1 - 1
1 May 2017
Bartys S Fredericksen P Burton K Bendix T
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Background

Current policy and practice aimed at tackling work disability due to low back pain is largely aligned with the Psychosocial Flags Framework, which focuses on addressing individual beliefs and behaviours (yellow and blue flags). However, our understanding of the systemic and contextual factors (black flags) that are also proposed to act as obstacles within this Framework is under-represented, resulting in a disproportionate evidence base and suboptimal interventions.

Methods

A ‘best-evidence’ synthesis was conducted to collate the evidence on those ‘black flags’ proposed to be the most important: compensatory systems (worker's compensation and disability benefits), healthcare provider systems and ‘significant others’ (spouse/partner/close family members). A systematic search of scientific and grey literature databases was performed, and the validity and merit of the available evidence was assessed using a system adapted from previous large-scale policy reviews conducted in this field.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 2 - 2
1 May 2017
Green P Murray M Coxon A Ryan C Greenough C
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Background

The BACK To Health programme is part of the wider North of England back pain and radicular pain pathway. The purpose of this programme is to provide a CPPP approach based on the NICE guidelines CG88 for those with back pain that has not responded to early management and simpler therapies. The purpose of this study is to present preliminary results of this programme.

Method

Referral onto the programme occurred through triage and treat practitioners or consultant clinics. A total of 44 patients were referred, with 31 attending the programme. The programme was delivered as a 3 week residential programme, with patients present 9am-5pm Monday to Thursday. A MDT provided an intense programme consisting of education, physical exercise, practical coping strategies and group discussion. The work has received ethical approval from the School of Health and Social Care Research Ethics and Governance committee at Teesside University.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 5 - 5
1 May 2017
Marley J McDonough S Tully M Bunting B O'Hanlon J Porter-Armstrong A
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Background

Chronic musculoskeletal pain increases an individual's risk of developing many chronic diseases and the risk of all-cause early mortality. There is irrefutable evidence supporting the role of physical activity (PA) in reducing these risks. Sustaining changes to PA behaviours is challenging and efforts are needed to understand the barriers and facilitators of change. Understanding these factors is a vital step in developing behaviour change interventions.

Objectives

Explore barriers and facilitators to engaging in PA in adults accessing pain services.

Explore barriers and facilitators to promoting PA by healthcare professionals, exercise professionals and charity staff/expert patients.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 6 - 6
1 May 2017
Roe J Godbole P Jordan-Mahy N Alderson A Le Maitre C
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Background

Auxetic materials have a negative poisons ratio, and a number of native biological tissues are proposed to possess auxetic properties. One such tissue is annulus fibrosus (AF), the fibrous outer layers of the intervertebral disc (IVD). However, few studies to date have investigated the potential of these materials as tissue engineering scaffolds. Here we describe the potential of manually converted polyurethane (PU) foams as three dimensional cellular scaffolds for AF repair.

Methods

Rat MSCs were seeded onto fibronectin coated auxetic foams at a cell density of 6.4 × 103 cells/mm3, and cultured for up to 3 weeks. Cell viability was assessed throughout culture and following culture scanning electron microscopy (SEM) was used to assess morphological characteristics. Histological assessment was performed to assess production of matrix proteins.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 9 - 9
1 May 2017
Greenhalgh S Selfe J
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Purposes of the study and background

A Qualitative study exploring patient's experience of Cauda Equina Syndrome (CES) was carried out. The aim of this study was to identify how Cauda Equina Syndrome symptoms may be more effectively identified by patients and their clinician. Patient's symptoms and experiences of their condition were explored, including issues associated with bladder, bowel and sexual function

A summary of the methods used and the results.

Via in-depth questions, participants were enabled to share their stories within a confidential setting. Narrative analysis of the patient's story allowed symptom progression and recognition to be explored and language used by participants themselves to describe symptoms identified. Seven themes emerged from the study. The findings were used to develop clinical tools to assist in the consultation process of potential CES patients. Finally the tools were validated by CES patients and clinicians prior to use within a clinical setting

Conclusion

The findings of this research have been utilised, working with patients as partners, to establish clear, sensitive and understandable language to use during clinical questioning of potential CES patients. This patient choice of language for sensitive questions has been replicated on a clinical cue card to use during the consultation and on a credit card sized leaflet to give to patients. Working with patients, clear methods of communication have been developed surrounding potentially embarrassing but critical symptoms in order to assist ‘bringing the individual patient and the surgical team together at the earliest practical opportunity’

No conflicts of interest

Source of funding; Physiotherapy Research Foundation (Part of the CSP Charitable Trust registered charity 279882)


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 11 - 11
1 May 2017
Al-Abbadey M Bradbury K Carnes D Dimitrov B Fawkes C Foster J Lewith G MacPherson H Roberts L Parry L Yardley L Bishop FL
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Purpose and Background

The MOCAM study is a major prospective questionnaire-based study investigating the relationship between low back pain (LBP) patient outcomes and non-specific treatment components, i.e., therapeutic relationship, healthcare environment, incidental treatment characteristics, patients' beliefs and practitioners' beliefs. Participating acupuncturists, osteopaths, and physiotherapists from the NHS and private sector have been asked to recruit at least 10 patients into the study. This paper aims to analyse current recruitment rates from MOCAM and identify barriers and facilitators to effective recruitment.

Methods and Results

Recruitment has taken place over 15 months. Invitation letters or emails were sent to individual practitioners identified using online search tools and professional networks. Recruitment rates were analysed descriptively. Within the private sector, response rates (number participating/number invited) are: acupuncturists 3% (49/1561), osteopaths 6% (53/912), physiotherapists 4% (40/1048). Private sector practitioners have each recruited on average 1, 4, and 2 patients into the study respectively. Within the NHS, the response rates are: acupuncturists 100% (2/2), osteopaths 8% (1/13), physiotherapists 63% (44/70). NHS practitioners have each recruited on average 4, 3, and 2 patients respectively.


Background and purpose of the study

Dropped Head Syndrome (DHS) is characterized by a chin on chest flexion neck deformity that is passively correctible. The condition is rare and literature on surgical and conservative management is focused on case studies and theoretical evidence.

Purpose of the study

The purpose of this study was to investigate the value of physiotherapy in the treatment of DHS by case series analysis.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 24 - 24
1 May 2017
Snuggs J Chiverton N Cole A Michael R Bunning R Conner M Le Maitre C
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Introduction

Within the intervertebral disc (IVD), nucleus pulposus (NP) cells reside within a unique microenvironment. Factors such as hypoxia, osmolality, pH and the presence of cytokines all dictate the function of NP cells and as such the cells must adapt to their environment to survive. Previously we have identified the expression of aquaporins (AQP) within human IVD tissue. AQPs allow the movement of water across the cell membrane and are important in cellular homeostasis. Here we investigated how AQP gene expression was regulated by the microenvironment of the IVD.

Methods

Human NP cells were cultured in alginate beads prior to cytokine, osmolality, pH and hypoxia treatments and subsequent RT-qPCR to assess regulation of AQP gene expression.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 20 - 20
1 May 2017
Awuzudike V Fabiane S Freidin M Williams F
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Objectives

A single degenerate intervertebral disc is suggested to promote rapid degeneration in its adjacent discs. We validated this hypothesis using discordant co-twin case-control design.

Methods

185 pairs of twins were selected from the TwinsUK database having cervical MRI scans at baseline and at follow-up, after 10 years. Isolated disc degeneration (IDD) was diagnosed in subjects having severe loss in disc height (graded 3/3) in a single disc, whilst discs immediately adjacent manifested little or no degeneration (graded 0 or 1). The controls' ‘adjacent discs’ were considered at the same levels as their affected co-twins.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 21 - 21
1 May 2017
Thorpe A Vickers L Sammon C Le Maitre C
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Background

Degeneration of the intervertebral disc (IVD) is a major cause of Low back pain. We have recently reported a novel, injectable liquid L-pNIPAM-co-DMAc hydrogel (NPgel), which promote differentiation of MSCs to nucleus pulposus (NP) cells without the need for additional growth factors. Here, we investigated the behaviour of hMSCs incorporated within the hydrogel injected into NP tissue.

Methods

hMSCs were injected either alone or within NPgel, into bovine NP tissue explants and maintained at 5% O2 for up to 6wks. Media alone and acellular NPgel were also injected into NP explants to serve as controls. Cell viability was assessed by Caspase 3 immunohistochemistry and the phenotype of injected hMSC was assessed by histology and immunohistochemistry. Mechanical properties were also assessed via dynamic mechanical analysis (DMA).