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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.


The Bone & Joint Journal
Vol. 100-B, Issue 2 | Pages 219 - 225
1 Feb 2018
Yoo JU McIver TC Hiratzka J Carlson H Carlson N Radoslovich SS Gernhart T Boshears E Kane MS

Aims

The aim of this study was to determine if positive Waddell signs were related to patients’ demographics or to perception of their quality of life.

Patients and Methods

This prospective cross-sectional study included 479 adult patients with back pain from a university spine centre. Each completed SF-12 and Oswestry Disability Index (ODI) questionnaires and underwent standard spinal examinations to elicit Waddell signs. The relationship between Waddell signs and age, gender, ODI, Mental Component Score (MCS), and Physical Component Score (PCS) scores was determined.


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

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
Full Access

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 19 - 19
1 Feb 2018
Owen S Thompson C McGlashan S Knight M Ockendon M Roberts S
Full Access

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 23 - 23
1 Feb 2018
Ryan C Roberts L
Full Access

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 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 24 - 24
1 Feb 2018
Ely S Stynes S Ogollah R Foster N Konstantinou K
Full Access

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 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

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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
Full Access

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
Full Access

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
Full Access

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.


The Bone & Joint Journal
Vol. 100-B, Issue 1 | Pages 81 - 87
1 Jan 2018
Peng B Yang L Yang C Pang X Chen X Wu Y

Aims

Cervical spondylosis is often accompanied by dizziness. It has recently been shown that the ingrowth of Ruffini corpuscles into diseased cervical discs may be related to cervicogenic dizziness. In order to evaluate whether cervicogenic dizziness stems from the diseased cervical disc, we performed a prospective cohort study to assess the effectiveness of anterior cervical discectomy and fusion on the relief of dizziness.

Patients and Methods

Of 145 patients with cervical spondylosis and dizziness, 116 underwent anterior cervical decompression and fusion and 29 underwent conservative treatment. All were followed up for one year. The primary outcomes were measures of the intensity and frequency of dizziness. Secondary outcomes were changes in the modified Japanese Orthopaedic Association (mJOA) score and a visual analogue scale score for neck pain.


The Bone & Joint Journal
Vol. 99-B, Issue 12 | Pages 1651 - 1657
1 Dec 2017
de Bodman C Miyanji F Borner B Zambelli P Racloz G Dayer R

Aims

The aim of this study was to report a retrospective, consecutive series of patients with adolescent idiopathic scoliosis (AIS) who were treated with posterior minimally invasive surgery (MIS) with a mean follow-up of two years (sd 1.4; 0.9 to 0 3.7). Our objectives were to measure the correction of the deformity and record the peri-operative morbidity. Special attention was paid to the operating time (ORT), estimated blood loss (EBL), length of stay (LOS) and further complications.

Patients and Methods

We prospectively collected the data of 70 consecutive patients with AIS treated with MIS using three incisions and a muscle-splitting approach by a single surgeon between June 2013 and February 2016 and these were retrospectively reviewed. There were eight male and 62 female patients with a mean age of 15 years (sd 4.5 ) with a mean body mass index of 19.8 kg/m2 (sd 5.4). The curves were classified according to Lenke; 40 curves were type 1, 15 were type 2, three were type 3, two were type 4, eight were type 5 and two were type 6.


The Bone & Joint Journal
Vol. 99-B, Issue 12 | Pages 1658 - 1664
1 Dec 2017
Ahmad A Subramanian T Panteliadis P Wilson-Macdonald J Rothenfluh DA Nnadi C

Aims

Magnetically controlled growing rods (MCGRs) allow non-invasive correction of the spinal deformity in the treatment of early-onset scoliosis. Conventional growing rod systems (CGRS) need repeated surgical distractions: these are associated with the effect of the ‘law of diminishing returns’.

The primary aim of this study was to quantify this effect in MCGRs over sequential distractions.

Patients and Methods

A total of 35 patients with a maximum follow-up of 57 months were included in the study. There were 17 boys and 18 girls with a mean age of 7.4 years (2 to 14). True Distraction (TD) was determined by measuring the expansion gap on fluoroscopy. This was compared with Intended Distraction (ID) and expressed as the ‘T/I’ ratio. The T/I ratio and the Cobb angle were calculated at several time points during follow-up.


The Bone & Joint Journal
Vol. 99-B, Issue 10 | Pages 1381 - 1388
1 Oct 2017
Wong YW Samartzis D Cheung KMC Luk K

Aims

To address the natural history of severe post-tuberculous (TB) kyphosis, with focus upon the long-term neurological outcome, occurrence of restrictive lung disease, and the effect on life expectancy.

Patients and Methods

This is a retrospective clinical review of prospectively collected imaging data based at a single institute. A total of 24 patients of Southern Chinese origin who presented with spinal TB with a mean of 113° of kyphosis (65° to 159°) who fulfilled inclusion criteria were reviewed. Plain radiographs were used to assess the degree of spinal deformity. Myelography, CT and MRI were used when available to assess the integrity of the spinal cord and canal. Patient demographics, age of onset of spinal TB and interventions, types of surgical procedure, intra- and post-operative complications, and neurological status were assessed.


The Bone & Joint Journal
Vol. 99-B, Issue 10 | Pages 1366 - 1372
1 Oct 2017
Rickert M Fleege C Tarhan T Schreiner S Makowski MR Rauschmann M Arabmotlagh M

Aims

We compared the clinical and radiological outcomes of using a polyetheretherketone cage with (TiPEEK) and without a titanium coating (PEEK) for instrumented transforaminal lumbar interbody fusion (TLIF).

Materials and Methods

We conducted a randomised clinical pilot trial of 40 patients who were scheduled to undergo a TLIF procedure at one or two levels between L2 and L5. The Oswestry disability index (ODI), EuroQoL-5D, and back and leg pain were determined pre-operatively, and at three, six, and 12 months post-operatively. Fusion rates were assessed by thin slice CT at three months and by functional radiography at 12 months.


The Bone & Joint Journal
Vol. 99-B, Issue 10 | Pages 1354 - 1365
1 Oct 2017
Patrick S McDowell A Lee A Frau A Martin U Gardner E McLorinan G Eames N

Aims

The aim of this study was to determine whether the sequential application of povidone iodine-alcohol (PVI) followed by chlorhexidine gluconate-alcohol (CHG) would reduce surgical wound contamination to a greater extent than PVI applied twice in patients undergoing spinal surgery.

Patients and Methods

A single-centre, interventional, two arm, parallel group randomised controlled trial was undertaken, involving 407 patients who underwent elective spinal surgery.

For 203 patients, the skin was disinfected before surgery using PVI (10% [w/w (1% w/w available iodine)] in 95% industrial denatured alcohol, povidone iodine; Videne Alcoholic Tincture) twice, and for 204 patients using PVI once followed by CHG (2% [w/v] chlorhexidine gluconate in 70% [v/v] isopropyl alcohol; Chloraprep with tint). The primary outcome measure was contamination of the wound determined by aerobic and anaerobic bacterial growth from samples taken after disinfection.


The Bone & Joint Journal
Vol. 99-B, Issue 10 | Pages 1373 - 1380
1 Oct 2017
Rienmüller A Buchmann N Kirschke JS Meyer EL Gempt J Lehmberg J Meyer B Ryang YM

Aims

We aimed to retrospectively assess the accuracy and safety of CT navigated pedicle screws and to compare accuracy in the cervical and thoracic spine (C2-T8) with (COMB) and without (POST) prior anterior surgery (anterior cervical discectomy or corpectomy and fusion with ventral plating: ACDF/ACCF).

Patients and Methods

A total of 592 pedicle screws, which were used in 107 consecutively operated patients (210 COMB, 382 POST), were analysed. The accuracy of positioning was determined according to the classification of Gertzbein and Robbins on post-operative CT scans.


The Bone & Joint Journal
Vol. 99-B, Issue 9 | Pages 1204 - 1209
1 Sep 2017
Fawi HMT Saba K Cunningham A Masud S Lewis M Hossain M Chopra I Ahuja S

Aims

To evaluate the incidence of primary venous thromboembolism (VTE), epidural haematoma, surgical site infection (SSI), and 90-day mortality after elective spinal surgery, and the effect of two protocols for prophylaxis.

Patients and Methods

A total of 2181 adults underwent 2366 elective spinal procedures between January 2007 and January 2012. All patients wore anti-embolic stockings, mobilised early and were kept adequately hydrated. In addition, 29% (689) of these were given low molecular weight heparin (LMWH) while in hospital. SSI surveillance was undertaken using the Centers for Disease Control and Prevention criteria.


The Bone & Joint Journal
Vol. 99-B, Issue 8 | Pages 1080 - 1087
1 Aug 2017
Tsirikos AI Mataliotakis G Bounakis N

Aims

We present the results of correcting a double or triple curve adolescent idiopathic scoliosis using a convex segmental pedicle screw technique.

Patients and Methods

We reviewed 191 patients with a mean age at surgery of 15 years (11 to 23.3). Pedicle screws were placed at the convexity of each curve. Concave screws were inserted at one or two cephalad levels and two caudal levels. The mean operating time was 183 minutes (132 to 276) and the mean blood loss 0.22% of the total blood volume (0.08% to 0.4%). Multimodal monitoring remained stable throughout the operation. The mean hospital stay was 6.8 days (5 to 15).


The Bone & Joint Journal
Vol. 99-B, Issue 8 | Pages 1003 - 1005
1 Aug 2017
Todd NV

The National Institute for Health and Care Excellence has issued guidelines that state fusion for non-specific low back pain should only be performed as part of a randomised controlled trial, and that lumbar disc replacement should not be performed. Thus, spinal fusion and disc replacement will no longer be routine forms of treatment for patients with low back pain. This annotation considers the evidence upon which these guidelines are based.

Cite this article: Bone Joint J 2017;99-B:1003–1005.


The Bone & Joint Journal
Vol. 99-B, Issue 7 | Pages 944 - 950
1 Jul 2017
Fan G Fu Q Zhang J Zhang H Gu X Wang C Gu G Guan X Fan Y He S

Aims

Minimally invasive transforaminal lumbar interbody fusion (MITLIF) has been well validated in overweight and obese patients who are consequently subject to a higher radiation exposure. This prospective multicentre study aimed to investigate the efficacy of a novel lumbar localisation system for MITLIF in overweight patients.

Patients and Methods

The initial study group consisted of 175 patients. After excluding 49 patients for various reasons, 126 patients were divided into two groups. Those in Group A were treated using the localisation system while those in Group B were treated by conventional means. The primary outcomes were the effective radiation dosage to the surgeon and the exposure time.


The Bone & Joint Journal
Vol. 99-B, Issue 6 | Pages 824 - 828
1 Jun 2017
Minhas SV Mazmudar AS Patel AA

Aims

Patients seeking cervical spine surgery are thought to be increasing in age, comorbidities and functional debilitation. The changing demographics of this population may significantly impact the outcomes of their care, specifically with regards to complications. In this study, our goals were to determine the rates of functionally dependent patients undergoing elective cervical spine procedures and to assess the effect of functional dependence on 30-day morbidity and mortality using a large, validated national cohort.

Patients and Methods

A retrospective analysis of the American College of Surgeons National Surgical Quality Improvement Program data files from 2006 to 2013 was conducted to identify patients undergoing common cervical spine procedures. Multivariate logistic regression models were generated to analyse the independent association of functional dependence with 30-day outcomes of interest.


The Bone & Joint Journal
Vol. 99-B, Issue 6 | Pages 829 - 833
1 Jun 2017
Pereira EAC Oxenham M Lam KS

Aims

In the United Kingdom, lower incidences of intraspinal abnormalities in patients with early onset idiopathic scoliosis have been observed than in studies in other countries. We aimed to determine the rates of these abnormalities in United Kingdom patients diagnosed with idiopathic scoliosis before the age of 11 years.

Patients and Methods

This retrospective study of patients attending an urban scoliosis clinic identified 71 patients satisfying a criteria of: clinical diagnosis of idiopathic scoliosis; age of onset ten years and 11 months or less; MRI screening for intraspinal abnormalities. United Kingdom census data combined with patient referral data was used to calculate incidence.


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

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
Full Access

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).


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

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
Full Access

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
Full Access

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 4 - 4
1 May 2017
Angus M Verma R Mohammad S Siddique I Dickens V Rawlinson G
Full Access

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.


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 20 - 20
1 May 2017
Awuzudike V Fabiane S Freidin M Williams F
Full Access

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
Full Access

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).


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 22 - 22
1 May 2017
Manning F Vergari C Mansfield J Meakin J Winlove P Sharp D
Full Access

Purpose of study

This study aims to establish the micro-structure of the vertebral endplate and its interface with the adjacent bone and disc in fresh, unstained tissue so that the structure can be related to normal and pathological function.

Background

The endplate is key in both the mechanics, anchoring and nutrition of the disc. Understanding the detailed structure of the normal and pathological endplate is important for understanding how it achieves its functions.

Advancements in imaging technology continually allow for greater understanding of biological structures. The development of two-photon fluorescence (TPF) combined with second harmonic generation (SHG), allows for the imaging of relatively thick, fresh samples without the need for staining.


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

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
Full Access

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
Full Access

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
Full Access

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
Full Access

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
Full Access

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
Full Access

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 13 - 13
1 May 2017
Graham J Heywood J
Full Access

Purpose and background

A review of secondary healthcare provision for civilians suffering persistent pain and living in the British Forces Germany (BFG) community was carried out in order to better inform referral from primary care. This population consists mostly of British nationals each with differing linguistic skills and cultural backgrounds. Patients may be referred to Evangelisches Krankenhaus Bielefeld (EvKB) in Germany or to Guys and St Thomas' NHS Foundation Trust (GSTT) in the UK. It was considered important to identify potential language or cultural-related barriers to improve decision making when considering where best to refer for a pain management programme (PMP).

Methods

Clinical visits undertaken at GSTT and EvKB involved observation of clinical activities, collection of documentation and informal staff discussions. Data were organised into common themes and categorised to provide information for written reflective accounts on each visit.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 7 - 7
1 May 2017
Woodman J Ballard K Glover L
Full Access

Background and objectives

The Alexander Technique (AT) is a self-care method usually taught in one-to-one lessons. AT lessons have been shown to be helpful in managing long-term health-related conditions (Int J Clin Pract 2012;66:98−112). This systematic review aims to draw together evidence of the effectiveness of AT lessons in managing musculoskeletal (MSK) conditions, with empirically based evidence of physiological changes following AT training, to provide a putative theoretical explanation for the observed benefits of Alexander lessons.

Methods and results

Systematic searches of a range of databases were undertaken to identify prospective studies evaluating AT instruction for any musculoskeletal condition, using PICO criteria, and for studies assessing the physiological effects of AT training. Citations (N=332) were assessed and seven MSK intervention studies were included for further analysis. In two large well-designed randomised controlled trials, AT lessons led to significant long-term (1 year) reductions in pain and incapacity caused by chronic back or neck pain (usual GP-led care comparator). Three smaller RCTs in chronic back and neck pain, respectively, and a pain clinic service evaluation broadly supported these findings. A pilot study reported preliminary evidence for pain reduction in knee osteoarthritis patients. Further studies showed significant improvements in general coordination, walking gait, motor control and balance, possibly resulting from improved postural muscle tone regulation and adaptability, in people with extensive AT training.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 8 - 8
1 May 2017
Draper-Rodi J Vogel S Bishop A
Full Access

A statement of the purposes of the study and background

The biopsychosocial (BPS) model is recommended for managing non-specific low back pain (NSLBP) but the best method for teaching the BPS model is unclear. E-learning is a promising alternative to face-to-face methods.

This study was a pilot randomised controlled trial (RCT) with embedded interview study to investigate the feasibility of conducting a main RCT and to explore the impact of an BPS for NSLBP e-learning programme on experienced practitioners' attitudes to back pain.

A summary of the methods used and the results

Mixed methods evaluated the impact of an evidence-based e-learning programme on participants' attitudes to back pain. A pilot RCT assessed 45 experienced osteopaths' attitudes before and after the intervention, using the Pain Attitudes and Beliefs Scale (PABS) and the Attitudes to Back Pain Scale (ABS). The qualitative study explored 9 participants' views on the e-learning programme and possible impact on their clinical practice.

91% of participants completed the course and the overall satisfaction was very high. Participants' views on the BPS model ranged between not being structural enough, already done and transformative. The e-learning programme was well accepted. It would be feasible to run a main study using the same recruitment procedures, eligibility criteria, randomisation procedure, consent process, data collection and outcome measures.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 23 - 23
1 May 2017
Snuggs J Day R Chiverton N Cole A Bunning R Conner M Le Maitre C
Full Access

Introduction

The intervertebral disc (IVD) is a highly hydrated tissue which is reduced during degeneration leading to loss of function. Aquaporins (AQP) are a family of 13 (AQP0-12) transmembrane channel proteins that selectively allow the passage of water and other small molecules in and out of cells and are responsible for maintaining water homeostasis. AQP1, 2, 3 and 5 have been identified in the IVD. Here gene and protein expression of all 13 AQPs was investigated in a large cohort of human IVDs to investigate expression during IVD degeneration.

Methods

Gene expression of all 13 AQPs was investigated in non-degenerate and degenerate tissue from 102 human NP samples using RT-qPCR. AQPs which were expressed at gene level were further investigated in 30 IVD samples by Immunohistochemistry.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 26 - 26
1 May 2017
Hoggett L Anderton M Khatri M
Full Access

Background

Advances in surgical and anesthetic technique have resulted in a reducing length of stay for lumbar decompression, with the first day case procedure published in the literature in 1980. Current evidence suggests day case surgery is associated with improved patient satisfaction, faster recovery, reduced infection rates and financial savings. Following the introduction of a locally agreed day case protocol for lumbar microdiscectomy, we reviewed our 30-day postoperative complication rates.

Aims

To review postoperative complication rates for patients who underwent day case primary lumbar microdiscectomy.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 27 - 27
1 May 2017
Fekete T Haschtmann D Becker H Kleinstück F Porchet F Jeszenszky D Banczerowski P Mannion A
Full Access

Background

Patient-rated measures are the gold standard for assessing spine surgery outcomes, but there is no consensus on the appropriate timing of follow-up. Journals often demand a minimum 2-year follow-up, but the indiscriminate application of this principle may not be warranted. We examined the course of change in patient outcomes up to 5 years postoperatively.

Methods

The data from 3′334 consecutive patients (1′789 women, 1′545 men; aged 61±15 years) undergoing first-time surgery between 1.1.2005 and 31.12.2010 for differing lumbar degenerative disorders were evaluated. The Core Outcome Measures Index (COMI) was completed by 3′124 (94%) patients preoperatively, 3′164 (95%) at 3 months follow-up, 3′153 (95%) at 1 year, 3′112 (93%) at 2 years, and 2′897 (87%) at 5 years. 2′502 (75%) completed COMI at all five timepoints.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 15 - 15
1 May 2017
Poyton R Cowell I Hall T Drew P Murtagh G McGregor A
Full Access

Background

Persistent low back and leg pain is a common and highly disabling musculoskeletal condition. Many patients seek the opinion of a neurosurgeon with a view to surgical intervention. Few data are available which document the experiences of patients at these consultations.

Aims

To investigate the experiences of patients seeking a neurosurgical opinion for back and leg pain.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 16 - 16
1 May 2017
Harrisson S Ogollah R Dunn K Foster N Konstantinou K
Full Access

Purpose of study and background

Neuropathic pain is a challenging pain syndrome to manage. Low back-related leg pain (LBLP) is clinically diagnosed as either sciatica or referred leg pain and sciatica is often assumed to be neuropathic. Our aim was to describe the prevalence and characteristics of neuropathic pain in LBLP patients.

Methods

Analysis of cross-sectional data from a prospective, primary care cohort of 609 LBLP patients. Patients completed questionnaires, and received clinical assessment including MRI. Neuropathic characteristics (NC) were measured using the self-report version of the Leeds Assessment of Neuropathic Symptoms and Signs scale (SLANSS; score of ≥12 indicates pain with NC).


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 10 - 10
1 May 2017
Anderton M Hoggett L Khatri M
Full Access

Background

PROMs have become an integral assessment tool of clinical effectiveness and patient satisfaction. To date, PROMs for lumbar discectomy are not an NHS requirement, although voluntary collection via the British Spine Registry is encouraged. Despite this, PROMs for day case microdiscectomy is scarcely reported. We present PROMs for day case microdiscectomy at Lancashire Teaching Hospitals.

Aims

To review PROMs to quantify leg pain, back pain, EQ5D and ODI scores.

Evaluate PROMs data collection compliance.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 14 - 14
1 May 2017
Wellington K Taylor J Khatri M
Full Access

Purpose of Study/Background

To identify whether patients were satisfied with the overall educational component of the specialist nurse (CNS)/occupational therapist (OT) led pre-operative assessment clinic in order to identify areas which required improvement.

The pre-operative specialist nurse led clinic was set up in 2002. The aim was to provide high quality information to patients undergoing elective spinal surgery in order to manage expectations and optimise post-operative recovery. Initially the clinic was specialist nurse led however, in 2006 occupational therapy input was introduced in order to provide an increased depth of information in regard to function and activities of daily living post operatively. In addition this has allowed assistive equipment to be provided pre-operatively. The format of this clinic has enhanced the patient's journey by facilitating reduced length of stay and more timely discharge.

Methodology

A questionnaire was forwarded to a random sample of two hundred patients who attended for pre-operative assessment in the twelve-month period between April 2014 & March 2015. Sixty questionnaires were returned (30% response rate).


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 3 - 3
1 May 2017
Wynne-Jones G Artus M Bishop A Lawton S Lewis M Main C Sowden G Wathall S Burton A van der Windt D Hay E
Full Access

Introduction

Early intervention is advocated to prevent long-term work absence due to musculoskeletal (MSK) pain. The SWAP trial tested whether adding a vocational advice (VA) service to best current care led to fewer days work absence over 4 months.

Methods

The SWAP trial was a cluster randomised controlled trial in 6 general practices, 3 randomised to best current care (control), 3 randomised to best current care and the VA service (intervention). Patients were ≥18 years, absent from work ≤6 months or struggling at work due to MSK pain. Primary outcome was number of days absent over 4 months. Exploratory subgroup analyses examined whether the effect was larger for patients with spinal pain compared to other MSK pain.


Bone & Joint Research
Vol. 6, Issue 4 | Pages 245 - 252
1 Apr 2017
Fu M Ye Q Jiang C Qian L Xu D Wang Y Sun P Ouyang J

Objectives

Many studies have investigated the kinematics of the lumbar spine and the morphological features of the lumbar discs. However, the segment-dependent immediate changes of the lumbar intervertebral space height during flexion-extension motion are still unclear. This study examined the changes of intervertebral space height during flexion-extension motion of lumbar specimens.

Methods

First, we validated the accuracy and repeatability of a custom-made mechanical loading equipment set-up. Eight lumbar specimens underwent CT scanning in flexion, neural, and extension positions by using the equipment set-up. The changes in the disc height and distance between adjacent two pedicle screw entry points (DASEP) of the posterior approach at different lumbar levels (L3/4, L4/5 and L5/S1) were examined on three-dimensional lumbar models, which were reconstructed from the CT images.


The Bone & Joint Journal
Vol. 99-B, Issue 1 | Pages 116 - 121
1 Jan 2017
Bajada S Ved A Dudhniwala AG Ahuja S

Aims

Rates of mortality as high as 25% to 30% have been described following fractures of the odontoid in the elderly population. The aim of this study was to examine whether easily identifiable variables present on admission are associated with mortality.

Patients and Methods

A consecutive series of 83 elderly patients with a fracture of the odontoid following a low-impact injury was identified retrospectively. Data that were collected included demographics, past medical history and the results of blood tests on admission. Radiological investigations were used to assess the Anderson and D’Alonzo classification and displacement of the fracture. The mean age was 82.9 years (65 to 101). Most patients (66; 79.5%) had a type 2 fracture. An associated neurological deficit was present in 11 (13.3%). All were treated conservatively; 80 (96.4%) with a hard collar and three (3.6%) with halo vest immobilisation.


The Bone & Joint Journal
Vol. 98-B, Issue 12 | Pages 1662 - 1667
1 Dec 2016
Teoh KH von Ruhland C Evans SL James SH Jones A Howes J Davies PR Ahuja S

Aims

We present a case series of five patients who had revision surgery following magnetic controlled growing rods (MGCR) for early onset scoliosis. Metallosis was found during revision in four out of five patients and we postulated a mechanism for rod failure based on retrieval analysis.

Patients and Methods

Retrieval analysis was performed on the seven explanted rods. The mean duration of MCGR from implantation to revision was 35 months (17 to 46). The mean age at revision was 12 years (7 to 15; four boys, one girl).


Bone & Joint Research
Vol. 5, Issue 11 | Pages 544 - 551
1 Nov 2016
Kim Y Bok DH Chang H Kim SW Park MS Oh JK Kim J Kim T

Objectives

Although vertebroplasty is very effective for relieving acute pain from an osteoporotic vertebral compression fracture, not all patients who undergo vertebroplasty receive the same degree of benefit from the procedure. In order to identify the ideal candidate for vertebroplasty, pre-operative prognostic demographic or clinico-radiological factors need to be identified. The objective of this study was to identify the pre-operative prognostic factors related to the effect of vertebroplasty on acute pain control using a cohort of surgically and non-surgically managed patients.

Patients and Methods

Patients with single-level acute osteoporotic vertebral compression fracture at thoracolumbar junction (T10 to L2) were followed. If the patients were not satisfied with acute pain reduction after a three-week conservative treatment, vertebroplasty was recommended. Pain assessment was carried out at the time of diagnosis, as well as three, four, six, and 12 weeks after the diagnosis. The effect of vertebroplasty, compared with conservative treatment, on back pain (visual analogue score, VAS) was analysed with the use of analysis-of-covariance models that adjusted for pre-operative VAS scores.


The Bone & Joint Journal
Vol. 98-B, Issue 11 | Pages 1526 - 1533
1 Nov 2016
van Tilburg CWJ Stronks DL Groeneweg JG Huygen FJPM

Aims

The aim of this study was to compare the effect of a percutaneous radiofrequency heat lesion at the medial branch of the primary dorsal ramus with a sham procedure, for the treatment of lumbar facet joint pain.

Patients and Methods

A randomised sham-controlled double blind multicentre trial was carried out at the multidisciplinary pain centres of two hospitals. A total of 60 patients aged > 18 years with a history and physical examination suggestive of facet joint pain and a decrease of ≥ 2 on a numerical rating scale (NRS 0 to 10) after a diagnostic facet joint test block were included. In the treatment group, a percutaneous radiofrequency heat lesion (80oC during 60 seconds per level) was applied to the medial branch of the primary dorsal ramus. In the sham group, the same procedure was undertaken without for the radiofrequency lesion. Both groups also received a graded activity physiotherapy programme. The primary outcome measure was decrease in pain. A secondary outcome measure was the Global Perceived Effect scale (GPE).


The Bone & Joint Journal
Vol. 98-B, Issue 9 | Pages 1222 - 1226
1 Sep 2016
Joestl J Lang N Bukaty A Platzer P

Aims

We performed a retrospective, comparative study of elderly patients with an increased risk from anaesthesia who had undergone either anterior screw fixation (ASF) or halo vest immobilisation (HVI) for a type II odontoid fracture.

Patients and Methods

A total of 80 patients aged 65 years or more who had undergone either ASF or HVI for a type II odontoid fracture between 1988 and 2013 were reviewed. There were 47 women and 33 men with a mean age of 73 (65 to 96; standard deviation 7). All had an American Society of Anesthesiologists score of 2 or more.


The Bone & Joint Journal
Vol. 98-B, Issue 9 | Pages 1234 - 1239
1 Sep 2016
Yu HM Malhotra K Butler JS Patel A Sewell MD Li YZ Molloy S

Aims

Patients with multiple myeloma (MM) develop deposits in the spine which may lead to vertebral compression fractures (VCFs). Our aim was to establish which spinopelvic parameters are associated with the greatest disability in patients with spinal myeloma and VCFs.

Patients and Methods

We performed a retrospective cross-sectional review of 148 consecutive patients (87 male, 61 female) with spinal myeloma and analysed correlations between spinopelvic parameters and patient-reported outcome scores. The mean age of the patients was 65.5 years (37 to 91) and the mean number of vertebrae involved was 3.7 (1 to 15).


Bone & Joint Research
Vol. 5, Issue 9 | Pages 419 - 426
1 Sep 2016
Leichtle CI Lorenz A Rothstock S Happel J Walter F Shiozawa T Leichtle UG

Objectives

Cement augmentation of pedicle screws could be used to improve screw stability, especially in osteoporotic vertebrae. However, little is known concerning the influence of different screw types and amount of cement applied. Therefore, the aim of this biomechanical in vitro study was to evaluate the effect of cement augmentation on the screw pull-out force in osteoporotic vertebrae, comparing different pedicle screws (solid and fenestrated) and cement volumes (0 mL, 1 mL or 3 mL).

Materials and Methods

A total of 54 osteoporotic human cadaver thoracic and lumbar vertebrae were instrumented with pedicle screws (uncemented, solid cemented or fenestrated cemented) and augmented with high-viscosity PMMA cement (0 mL, 1 mL or 3 mL). The insertion torque and bone mineral density were determined. Radiographs and CT scans were undertaken to evaluate cement distribution and cement leakage. Pull-out testing was performed with a material testing machine to measure failure load and stiffness. The paired t-test was used to compare the two screws within each vertebra.


The Bone & Joint Journal
Vol. 98-B, Issue 9 | Pages 1240 - 1247
1 Sep 2016
Thompson W Thakar C Rolton DJ Wilson-MacDonald J Nnadi C

Aims

We undertook a prospective non-randomised radiological study to evaluate the preliminary results of using magnetically-controlled growing rods (MAGEC System, Ellipse technology) to treat children with early-onset scoliosis.

Patients and Methods

Between January 2011 and January 2015, 19 children were treated with magnetically-controlled growing rods (MCGRs) and underwent distraction at three-monthly intervals. The mean age of our cohort was 9.1 years (4 to 14) and the mean follow-up 22.4 months (5.1 to 35.2). Of the 19 children, eight underwent conversion from traditional growing rods. Whole spine radiographs were carried out pre- and post-operatively: image intensification was used during each lengthening in the outpatient department. The measurements evaluated were Cobb angle, thoracic kyphosis, proximal junctional kyphosis and spinal growth from T1 to S1.


The Bone & Joint Journal
Vol. 98-B, Issue 9 | Pages 1227 - 1233
1 Sep 2016
Bao H Yan P Qiu Y Liu Z Zhu F

Aims

There is a paucity of information on the pre-operative coronal imbalance in patients with degenerative lumbar scoliosis (DLS) and its influence on surgical outcomes.

Patients and Methods

A total of 284 DLS patients were recruited into this study, among whom 69 patients were treated surgically and the remaining 215 patients conservatively Patients were classified based on the coronal balance distance (CBD): Type A, CBD < 3 cm; Type B, CBD > 3 cm and C7 Plumb Line (C7PL) shifted to the concave side of the curve; Type C, CBD > 3 cm and C7PL shifted to the convex side.


The Bone & Joint Journal
Vol. 98-B, Issue 8 | Pages 1093 - 1098
1 Aug 2016
Park S Kim HJ Ko BG Chung JW Kim SH Park SH Lee MH Yeom JS

Aims

The purpose of this study was to investigate the prevalence of sarcopenia and to examine its impact on patients with degenerative lumbar spinal stenosis (DLSS).

Patients and Methods

This case-control study included two groups: one group consisting of patients with DLSS and a second group of control subjects without low back or neck pain and related leg pain. Five control cases were randomly selected and matched by age and gender (n = 77 cases and n = 385 controls) for each DLSS case. Appendicular muscle mass, hand-grip strength, sit-to-stand test, timed up and go (TUG) test, and clinical outcomes, including the Oswestry Disability Index (ODI) scores and the EuroQol EQ-5D were compared between the two groups.


The Bone & Joint Journal
Vol. 98-B, Issue 8 | Pages 1099 - 1105
1 Aug 2016
Weiser L Dreimann M Huber G Sellenschloh K Püschel K Morlock MM Rueger JM Lehmann W

Aims

Loosening of pedicle screws is a major complication of posterior spinal stabilisation, especially in the osteoporotic spine. Our aim was to evaluate the effect of cement augmentation compared with extended dorsal instrumentation on the stability of posterior spinal fixation.

Materials and Methods

A total of 12 osteoporotic human cadaveric spines (T11-L3) were randomised by bone mineral density into two groups and instrumented with pedicle screws: group I (SHORT) separated T12 or L2 and group II (EXTENDED) specimen consisting of T11/12 to L2/3. Screws were augmented with cement unilaterally in each vertebra. Fatigue testing was performed using a cranial-caudal sinusoidal, cyclic (1.0 Hz) load with stepwise increasing peak force.


The Bone & Joint Journal
Vol. 98-B, Issue 7 | Pages 990 - 996
1 Jul 2016
Fujiwara H Makino T Yonenobu K Honda H Kaito T

Aims

In this prospective observational study, we investigated the time-dependent changes and correlations of upper arm performance tests (ten-second test and Simple Test for Evaluating Hand Function (STEF), the Japanese Orthopaedic Association (JOA) score, and the JOA Cervical Myelopathy Evaluation Questionnaire (JOACMEQ) in 31 patients with cervical myelopathy who had undergone surgery.

Patients and Methods

We hypothesised that all the indices correlate with each other, but show slightly different recovery patterns, and that the newly described JOACMEQ is a sensitive outcome measure.


The Bone & Joint Journal
Vol. 98-B, Issue 7 | Pages 984 - 989
1 Jul 2016
Zijlmans JL Buis DR Verbaan D Vandertop WP

Aims

Our aim was to perform a systematic review of the literature to assess the incidence of post-operative epidural haematomas and wound infections after one-, or two-level, non-complex, lumbar surgery for degenerative disease in patients with, or without post-operative wound drainage.

Patients and Methods

Studies were identified from PubMed and EMBASE, up to and including 27 August 2015, for papers describing one- or two-level lumbar discectomy and/or laminectomy for degenerative disease in adults which reported any form of subcutaneous or subfascial drainage.


The Bone & Joint Journal
Vol. 98-B, Issue 7 | Pages 997 - 1002
1 Jul 2016
Sudo HS Mayer MM Kaneda KK Núñez-Pereira S Shono SY Hitzl WH Iwasaki NI Koller HK

Aims

The aims of our study were to provide long-term information on the behaviour of the thoracolumbar/lumbar (TL/L) curve after thoracic anterior correction and fusion (ASF) and to determine the impact of ASF on pulmonary function.

Patients and Methods

A total of 41 patients (four males, 37 females) with main thoracic (MT) adolescent idiopathic scoliosis (AIS) treated with ASF were included. Mean age at surgery was 15.2 years (11 to 27). Mean follow-up period was 13.5 years (10 to 18).


The Bone & Joint Journal
Vol. 98-B, Issue 6 | Pages 829 - 833
1 Jun 2016
Hou Y Nie L Pan X Si M Han Y Li J Zhang H

Aims

In order to evaluate the effectiveness of the Mobi-C implant in cervical disc degeneration, a randomised study was conducted, comparing the Mobi-C prosthesis arthroplasty with anterior cervical disc fusion (ACDF) in patients with single level cervical spondylosis.

Patients and Methods

From January 2008 to July 2009, 99 patients were enrolled and randomly divided into two groups, those having a Mobi-C implant (n = 51; 30 men, 21 women) and those undergoing ACDF (n = 48; 28 men, 20 women).The patients were followed up for five years, with the primary outcomes being the Japanese Orthopaedic Association score, visual analogue scale for pain and the incidence of further surgery. The secondary outcomes were the Neck Disability Index and range of movement (ROM) of the treated segment.


The Bone & Joint Journal
Vol. 98-B, Issue 6 | Pages 834 - 839
1 Jun 2016
Wang S Ma H Lin C Chou P Liu C Yu W Chang M

Aim

Many aspects of the surgical treatment of patients with tuberculosis (TB) of the spine, including the use of instrumentation and the types of graft, remain controversial. Our aim was to report the outcome of a single-stage posterior procedure, with or without posterior decompression, in this group of patients.

Patients and Methods

Between 2001 and 2010, 51 patients with a mean age of 62.5 years (39 to 86) underwent long posterior instrumentation and short posterior or posterolateral fusion for TB of the thoracic and lumbar spines, followed by anti-TB chemotherapy for 12 months. No anterior debridement of the necrotic tissue was undertaken. Posterior decompression with laminectomy was carried out for the 30 patients with a neurological deficit.


Bone & Joint Research
Vol. 5, Issue 6 | Pages 239 - 246
1 Jun 2016
Li P Qian L Wu WD Wu CF Ouyang J

Objectives

Pedicle-lengthening osteotomy is a novel surgery for lumbar spinal stenosis (LSS), which achieves substantial enlargement of the spinal canal by expansion of the bilateral pedicle osteotomy sites. Few studies have evaluated the impact of this new surgery on spinal canal volume (SCV) and neural foramen dimension (NFD) in three different types of LSS patients.

Methods

CT scans were performed on 36 LSS patients (12 central canal stenosis (CCS), 12 lateral recess stenosis (LRS), and 12 foraminal stenosis (FS)) at L4-L5, and on 12 normal (control) subjects. Mimics 14.01 workstation was used to reconstruct 3D models of the L4-L5 vertebrae and discs. SCV and NFD were measured after 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm pedicle-lengthening osteotomies at L4 and/or L5. One-way analysis of variance was used to examine between-group differences.


The Bone & Joint Journal
Vol. 98-B, Issue 6 | Pages 825 - 828
1 Jun 2016
Craxford S Bayley E Walsh M Clamp J Boszczyk BM Stokes OM

Aim

Identifying cervical spine injuries in confused or comatose patients with multiple injuries provides a diagnostic challenge. Our aim was to investigate the protocols which are used for the clearance of the cervical spine in these patients in English hospitals.

Patients and Methods

All hospitals in England with an Emergency Department were asked about the protocols which they use for assessing the cervical spine. All 22 Major Trauma Centres (MTCs) and 141 of 156 non-MTCs responded (response rate 91.5%).


The Bone & Joint Journal
Vol. 98-B, Issue 5 | Pages 679 - 685
1 May 2016
Ryu KJ Suh SW Kim HW Lee DH Yoon Y Hwang JH

Aims

The aim of this study was a quantitative analysis of a surgeon’s learning curve for scoliosis surgery and the relationship between the surgeon’s experience and post-operative outcomes, which has not been previously well described.

Patients and Methods

We have investigated the operating time as a function of the number of patients to determine a specific pattern; we analysed factors affecting the operating time and compared intra- and post-operative outcomes. We analysed 47 consecutive patients undergoing scoliosis surgery performed by a single, non-trained scoliosis surgeon. Operating time was recorded for each of the four parts of the procedures: dissection, placement of pedicle screws, reduction of the deformity and wound closure.


The Bone & Joint Journal
Vol. 98-B, Issue 5 | Pages 672 - 678
1 May 2016
Zhang X Zhang Z Wang J Lu M Hu W Wang Y Wang Y

Aims

The aim of this study is to introduce and investigate the efficacy and feasibility of a new vertebral osteotomy technique, vertebral column decancellation (VCD), for rigid thoracolumbar kyphotic deformity (TLKD) secondary to ankylosing spondylitis (AS).

Patients and Methods

We took 39 patients from between January 2009 and January 2013 (26 male, 13 female, mean age 37.4 years, 28 to 54) with AS and a TLKD who underwent VCD (VCD group) and compared their outcome with 45 patients (31 male, 14 female, mean age 34.8 years, 23 to 47) with AS and TLKD, who underwent pedicle subtraction osteotomy (PSO group), according to the same selection criteria. The technique of VCD was performed at single vertebral level in the thoracolumbar region of AS patients according to classification of AS kyphotic deformity. Pre- and post-operative chin-brow vertical angle (CBVA), sagittal vertical axis (SVA) and sagittal Cobb angle in the thoracolumbar region were reviewed in the VCD and PSO groups. Intra- , post-operative and general complications were analysed in both group.


The Bone & Joint Journal
Vol. 98-B, Issue 5 | Pages 666 - 671
1 May 2016
Makino T Kaito T Sakai Y Kashii M Yoshikawa H

Aims

To clarify the asymmetrical ossification of the epiphyseal ring between the convex and concave sides in patients with adolescent idiopathic scoliosis (AIS).

Patients and Methods

A total of 29 female patients (mean age, 14.4 years; 11 to 18) who underwent corrective surgery for AIS (Lenke type 1 or 2) were included in our study. In all, 349 vertebrae including 68 apical vertebrae and 87 end vertebrae in the main thoracic (MT) curve and thoracolumbar/lumbar (TL/L) curve were analysed. Coronal sections (anterior, middle and posterior) of the vertebral bodies were reconstructed from pre-operative CT scans (320-row detector; slice thickness, 0.5 mm) and the appearances of the ossification centre in the epiphyseal ring at four corners were evaluated in three groups; all vertebrae excluding end vertebrae, apical vertebrae and end vertebrae. The appearance rates of the ossification centre at the concave and convex sides were calculated and compared.


Bone & Joint Research
Vol. 5, Issue 4 | Pages 145 - 152
1 Apr 2016
Bodalia PN Balaji V Kaila R Wilson L

Objectives

We performed a systematic review of the literature to determine the safety and efficacy of bone morphogenetic protein (BMP) compared with bone graft when used specifically for revision spinal fusion surgery secondary to pseudarthrosis.

Methods

The MEDLINE, EMBASE and Cochrane Library databases were searched using defined search terms. The primary outcome measure was spinal fusion, assessed as success or failure in accordance with radiograph, MRI or CT scan review at 24-month follow-up. The secondary outcome measure was time to fusion.


The Bone & Joint Journal
Vol. 98-B, Issue 4 | Pages 526 - 533
1 Apr 2016
Hanley EN Ode G Jackson III JB Seymour R

Aims

The purpose of this prospective study was to evaluate the outcomes of coccygectomy for patients with chronic coccydynia.

Patients and Methods

Between 2007 and 2011, 98 patients underwent coccygectomy for chronic coccydynia. The patients were aged > 18 years, had coccygeal pain, local tenderness and a radiological abnormality, and had failed conservative management. Outcome measures were the Short Form 36 (SF-36), the Oswestry Disability Index (ODI) and a visual analogue scale (VAS) for pain. Secondary analysis compared the pre-operative features and the outcomes of patients with successful and failed treatment, two years post-operatively. The threshold for success was based on a minimum clinically important difference (MCID) on the ODI of 20 points. All other patients, including those lost to follow-up, were classified as failures.


The Bone & Joint Journal
Vol. 98-B, Issue 3 | Pages 402 - 409
1 Mar 2016
Sudo H Kaneda K Shono Y Iwasaki N

Aims

A total of 30 patients with thoracolumbar/lumbar adolescent idiopathic scoliosis (AIS) treated between 1989 and 2000 with anterior correction and fusion surgery using dual-rod instrumentation were reviewed.

Patients and Methods

Radiographic parameters and clinical outcomes were compared among patients with lowest instrumented vertebra (LIV) at the lower end vertebra (LEV; EV group) (n = 13) and those treated by short fusion (S group), with LIV one level proximal to EV (n = 17 patients).


The Bone & Joint Journal
Vol. 98-B, Issue 3 | Pages 387 - 394
1 Mar 2016
Eguchi Y Oikawa Y Suzuki M Orita S Yamauchi K Suzuki M Aoki Y Watanabe A Takahashi K Ohtori S

Aims

The aim of this study was to evaluate the time course of changes in parameters of diffusion tensor imaging (DTI) such as fractional anisotropy (FA) and apparent diffusion coefficient (ADC) in patients with symptomatic lumbar disc herniation. We also investigated the correlation between the severity of neurological symptoms and these parameters.

Patients and Methods

A total of 13 patients with unilateral radiculopathy due to herniation of a lumbar disc were investigated with DTI on a 1.5T MR scanner and underwent micro discectomy. There were nine men and four women, with a median age of 55.5 years (19 to 79). The changes in the mean FA and ADC values and the correlation between these changes and the severity of the neurological symptoms were investigated before and at six months after surgery.


The Bone & Joint Journal
Vol. 98-B, Issue 3 | Pages 395 - 401
1 Mar 2016
Helenius I Keskinen H Syvänen J Lukkarinen H Mattila M Välipakka J Pajulo O

Aims

In a multicentre, randomised study of adolescents undergoing posterior spinal fusion for idiopathic scoliosis, we investigated the effect of adding gelatine matrix with human thrombin to the standard surgical methods of controlling blood loss.

Patients and Methods

Patients in the intervention group (n = 30) were randomised to receive a minimum of two and a maximum of four units of gelatine matrix with thrombin in addition to conventional surgical methods of achieving haemostasis. Only conventional surgical methods were used in the control group (n = 30). We measured the intra-operative and total blood loss (intra-operative blood loss plus post-operative drain output).


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 40 - 40
1 Feb 2016
Anzak A Kostusiak M Corbett J Gill D Gadir M
Full Access

Background:

Lumbar intraspinal cysts (LICs) are rare incidental MRI findings in back pain. Their space-occupying nature make them plausible factors in both non-specific and radicular back pain.

Methods:

Retrospective cohort study of patients with MRI reports of LICs at our center over 5 years. N=26, 13 male, mean age 66 ± 12 years.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 13 - 13
1 Feb 2016
Chohan A Haworth L Janssen J Selfe J
Full Access

Background:

Larger breasted women are at higher risk of wearing ill-fitting breast-support garments. Failure to support breasts during everyday activity can lead to physiological conditions including back and breast pain. This study aimed to identify initial and short-term (4 weeks) biomechanical change and patient reported outcome measures (PROMS) in larger breasted women with non-specific back pain (NSBP) when wearing different breast-support garments.

Methods & Results:

20 females (Age: 32.1±9.4 years; Bra sizes: 36DD-32K) with NSBP were recruited using modified red flags screening. Participants were tested initially in their usual bra, followed by the professionally-fitted and Optifit bras, in randomised order. Pre/post assessments comprised an established bra-fit assessment, body chart analysis, frequency of wear and pain, continuous-pain intensity (SF-MPQ-2), back stiffness and discomfort, neck disability and thoracic posture in standing using 3D-movement analysis.

100% of Usual and 90% of professionally-fitted bras failed the bra-fit assessment, compared to 5% with the Optifit. Though worn the least on average, a short-term intervention with the Optifit bra resulted in significant reductions in reported thoracic pain, clinically important reductions in neck disability, back pain frequency, continuous-pain intensity, stiffness and discomfort compared to the other bras. The Optifit and professionally-fitted bras significantly reduced reported lumbosacral pain compare to the usual bra. There was no initial change in thoracic posture with the Optifit bra however, significant improvements in flexion-extension posture were seen post-intervention.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 25 - 25
1 Feb 2016
Siddiqui A Asmat F Anjarwalla N
Full Access

Background:

Following lumbar spine surgery patients with a high BMI appear to have increased post-operative complications including surgical site infections (SSI), urinary complications, increased anaesthetic/operative time and a greater need for post-operative blood transfusion. There is no current evidence, however, analysing the effect of BMI on functional outcome.

Purpose:

We aimed to analyse the effect of BMI on functional outcome following lumbar spine surgery.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 30 - 30
1 Feb 2016
Chiarotto A Terwee C Boers M Ostelo R
Full Access

Background and purpose:

Inconsistent outcome reporting is a problematic issue in systematic reviews of clinical trials in non-specific LBP (NSLBP). To facilitate statistical pooling and improve reliability of reviews, the development of a core outcome set (COS) is recommended. In 1998, Deyo et al. proposed a standardized set of domains and measurement instruments for LBP clinical research. An international steering committee (ISC) was formed to update 1998 recommendations, and to determine, at first, which outcome domains should be included in a COS for clinical trials in NSLBP.

Methods:

The ISC used the OMERACT framework 2.0 to draw a list of potential core domains. This list was presented in a 3-round Delphi survey, in which researchers, clinicians and patients were invited to participate. Criteria for consensus were established a-priori and quantitative responses were analysed together with arguments provided by Delphi participants. The ISC discussed the results and made final decisions.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 38 - 38
1 Feb 2016
Memon K Bevan L Leiow N Democratis J Anjarwalla N
Full Access

Spondylodiscitis is an uncommon condition with an incidence of 1:100,000 to 1:250,000 in developed countries. Diagnosis and treatment can be delayed resulting in poor outcomes. A high index of suspicion is necessary considering the associated mortality, reported at 2–17%.

Establishing a diagnosis can be challenging as features are non-specific and onset may be insidious. While treatment is usually conservative, certain situations require surgery. All patients however require careful assessment and monitoring for complications that may require further intervention. A review of our practice in Wexham Park and Heatherwood Hospital NHS Trust from 2009 to 2013 produced a guideline suggesting the need for blood cultures, imaging with MRI and involvement of the infectious diseases and spinal teams. We re-audited (20 cases) to assess compliance with the guidelines, which were in place to reduce the delay in diagnosis.

Recurrent presentation, infections of unknown origin and deterioration after a short course of antibiotics were indicators for triggering imaging of the spine for discitis. Delays in diagnosis were more marked in bacterial cases rather than tuberculosis. It was impossible to predetermine patients that would require surgical intervention. Our compliance with the guideline had improved from 70 to over 90% and there were no relapses or mortality.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 12 - 12
1 Feb 2016
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. PROMs data are often collected using hard copy questionnaires. New technology enables electronic PROM data collection.

Purpose of the study:

To identify patient and practitioner perceived opportunities and challenges to implementing electronic PROM data capture as part of the process for developing a PROM phone and online app.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 1 - 1
1 Feb 2016
Esteves J
Full Access

Background and purpose of study:

Chronic back pain is a complex and poorly understood condition incorporating sensory, cognitive and emotional elements. Research demonstrates a strong association between chronic back pain and cognitive and non-cognitive factors such as anxiety, depression, fear-avoidance and self-efficacy. However, until very recently, the way in which chronic back pain sufferers process their emotions was largely unknown. To this end, we conducted two case-control studies using a between-groups correlational design to investigate the relationship between chronic back pain and emotional processing.

Methods and results:

In study 1, 55 chronic back pain sufferers and 55 pain-free individuals were administered the Emotional Processing Scale (EPS) to determine whether chronic back pain sufferers process their emotions differently from pain-free individuals. In study 2, 32 CBP sufferers and 27 pain-free individuals were administered the EPS, PHQ-9 and the GAD-7 to further test if chronic back pain is associated with altered emotional process and whether anxiety and depression may play a role in this relationship.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 2 - 2
1 Feb 2016
Serbic D Pincus T
Full Access

Statement of the purposes of the study and background:

Low back pain (LBP) is the leading cause of disability worldwide, and greater understanding of mechanisms leading to increased disability in LBP is necessary. Pain-related guilt and in particular social guilt (one type of pain-related guilt) has recently been linked to greater depression, anxiety and disability in LBP. Research has also shown that greater acceptance of pain is associated with less pain intensity, depression, pain-related anxiety and disability, and with greater daily activity and overall wellbeing in chronic pain patients. The current study aim was to understand the relationship between pain-related guilt and pain-related acceptance in LBP.

Summary of the methods used and the results:

The study examined the relationship between pain-related guilt and pain-related acceptance in a sample of 287 LBP patients. A series of hierarchical multiple regression analyses were conducted in which known correlates of pain-related acceptance (pain intensity, disability, depression and anxiety) were controlled for, with the objective of testing whether pain-related guilt explains any unique variance in pain-related acceptance. Social guilt was the strongest predictor of reduced pain-related acceptance in all analyses.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 5 - 5
1 Feb 2016
Beneciuk J Hill J Campbell P George S Afolabi E Dunn K Foster N
Full Access

Purpose and Background:

To identify treatment effect modifiers within the STarT Back Trial which demonstrated prognostic stratified care was effective in comparison to standard care for patients with low back pain.

Methods:

Secondary analysis of the STarT Back Trial using 688 patients with available 4-month follow-up data. Disability (baseline and 4 months) was assessed using the Roland Morris Disability Questionnaire (RMDQ) using continuous and dichotomized (>7) outcome scores. Potential treatment effect modifiers were evaluated with group x predictor interaction terms using linear and logistic regression models. Modifiers included: age, gender, education, socio-economic status (SES), employment status, work satisfaction, episode duration, general health (SF-12), number of pain medications, and treatment expectations.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 8 - 8
1 Feb 2016
Newell D Field J
Full Access

Background:

Low Back Pain and Neck Pain rank 1 and 4 on the causes of years lost to disability (YLDs) in the UK. Treatment options are broad including popular approaches such as chiropractic care but with NHS funding limited to recent initiatives such as Any Qualified Provider (AQP).

Method:

Eleven chiropractic practices with AQP contracts took part in the study. As part of routine clinical practice, patients are entered onto a web based patient reported outcome system that sends automated e mails links to questionnaires, prior to the initial visit (includes the Bournemouth Questionnaire (BQ) and STarT Back, and at 14, 30 and 90 days (BQ and Patient Global Impression of Change (PGIC)). Data from subjects consenting for such use were used in the analysis.


Bone & Joint Research
Vol. 5, Issue 2 | Pages 46 - 51
1 Feb 2016
Du J Wu J Wen Z Lin X

Objectives

To employ a simple and fast method to evaluate those patients with neurological deficits and misplaced screws in relatively safe lumbosacral spine, and to determine if it is necessary to undertake revision surgery.

Methods

A total of 316 patients were treated by fixation of lumbar and lumbosacral transpedicle screws at our institution from January 2011 to December 2012. We designed the criteria for post-operative revision scores of pedicle screw malpositioning (PRSPSM) in the lumbosacral canal. We recommend the revision of the misplaced pedicle screw in patients with PRSPSM = 5′ as early as possible. However, patients with PRSPSM < 5′ need to follow the next consecutive assessment procedures. A total of 15 patients were included according to at least three-stage follow-up.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_6 | Pages 3 - 3
1 Feb 2016
Holt N Pincus T
Full Access

Background:

A distinction has been posited between cognitive (informational) and affective (emotional) reassurance, with a suggestion that affective reassurance may negatively affect patient outcomes by reducing patients' motivation to engage with information conducive to recovery. Cognitive reassurance, though, provides explanations and information to help patients self-manage, and so aids recovery. However, research is lacking on how each actually affects patient outcomes in primary care.

Purpose of the Study:

To develop a valid measure of practitioner reassurance, and assess the impact of different reassurance strategies on patients' outcomes.