This presentation discusses the experience at our Centre with treating traumatic thoracolumbar fractures using percutaneous pedicle screw fixation and also looks at clinical and radiological outcomes as well as complications. This is a retrospective study reviewing all cases performed between Jan 2013 and June 2019Objectives
Design
1312 patients with idiopathic scoliosis completed the ScolioGold Body Image Questionnaire (SBIQ) before and after a course of intensive PSSE treatment. A paired T-test compared the patient's perception of Body image. Mean age was 24.7 with a range of 6 to 83 years old (<18 = 687; >18 = 625), female = 1061, male = 251). Pre-treatment average was 5.3 (SD=2.07), which improved to 2.8 after treatment (SD=1.8). The difference of 2.6 was statistically significant (p<0.005). Pre-treatment, the patients in the children group scored 4.67, which was significantly lower than the adult group score of 6.32. On average, the children improved their scores by 2.48 to 2.19 which was statistically significant (p=0.000). The adults improved their scores by 2.81 to 3.51 which was statistically significant (p=0.000). On average patients with mild (11° to 25° Cobb angles) and moderate (26° to 50° Cobb angles) curvatures achieved a larger improvement compared to patients with severe curvatures (>50° Cobb angles). This difference of 0.35 was statistically significant (n=641, p<0.05). There were significant improvements in the total SBIQ scores before and after treatment in both the child and adult groups with mild to severe curvatures after an intensive course of PSSE treatment. This shows that intensive PSSE treatment can improve scoliotic patients' self-image, therefore addressing aspects of their psychosocial well-being.
The aim of this study was to compare the treatment ouctomes of severe idiopathic scoliosis (IS) (>90 degrees) using the staged surgery with initial limited internal distraction and typical IS treated using segmental pedicle screw instrumentation. We hypothesized that staged surgical treatment of severe scoliosis would improve more HRQoL and pulmonary function (PF) as compared with posterior spinal fusion (PSF) for typical IS curves. It was a retrospective review of a consecutive series of 60 IS, severe group (SG) vs. moderate group (MG) with min. 2 years of follow up (FU). The mean preoperative major curve (MC) was 120° and thoracic kyphosis (TK) was 80° for the SG and 54° and 17° for the MG, respectively (p<0.001). The MC was corrected to 58° and TK to 32° for the SG; the MC to 26° and TK to 14°, for the MG, respectively (p<0.001). The mean preoperative AVT was 8.9 cm and improved to 2.8 cm at the final FU for the SG and from 6.5 cm to 2.2 cm at the final FU for the MG (p<0.001). At baseline, the FVC% & FEV1% values were significant different between the two groups (41.5% vs. 83%, p <0.001) & (41.6% vs. 77%, p <0.001). Compared the baseline for SG vs. the values at 2-year FU the FVC % values were (41.5% vs. 66.5%, p <0.001), and the baseline for MG vs. the values at 2-year FU, the FEV1 values were (77% vs. 81%, NS). At last FU, no complications were reported. Gradual traction with complicity of multilevel Ponte's osteotomies and neuromonitoring followed by staged pedicle screws instrumentation in severe IS proved to be a safe and effective method improving spinal deformity (52% correction), PF (improved percentage of predicted forced vital capacity by 49%), and health-related quality and allows to achieve progressive curve correction with no neurologic complications associated to more aggressive one-stage surgeries.
Adolescent Idiopathic Scoliosis (AIS) patients were subjected to four weeks of Physiotherapy Scoliosis Specific Exercise (PSSE). 124 (Exclusion = 3) Patients were enrolled and assigned to either complete their treatment in one 4-week bout (4WC) (63 patients, Group 1 (4WC) showed significant improvements from baseline (Pre-3.73 – Post 3.9; p=0.026) after the course of treatment, and showed significant improvements at 12 months follow up in Mental Health (p=0.006), Aggregate score (p= 0.005) and Satisfaction score (p=0.011). Satisfaction score remained statistically significant at 18 months follow up (p=0.016). Group 2 (2X2WC) did not record a significant improvement from baseline (p=0.058); however, showed significant improvements in self-image (p=0.013). There was no statically significant difference in SRS scores with respect to follow up time. We conclude that Physiotherapy Scoliosis Specific Exercise (PSSE) is a successful non-invasive therapy for AIS. The modified Schroth technique (ScolioGold) shows significant improvement in SRS30 scores with the 4-week intensive course that are sustained at a 2 year follow up.
Endoscopic spine surgery is a promising and minimally invasive technique for the treatment of disc herniation and spinal stenosis. However, the literature on the outcome of interlaminar endoscopic decompression (IED) versus conventional microsurgical technique (CMT) in patients with lumbar spinal stenosis is scarce. We analyzed 88 patients (IED: 36/88, 40.9%; CMT: 52/88, 59.1%) presenting with lumbar central spinal stenosis between 2018–2020. Surgery-related (operation time, complications, time to hospital release (THR), ASA score, C-reactive protein (CRP), white blood cell count (WBC), side (unilateral/bilateral), patient-reported (ODI, NRS (leg-, back pain), eQ5D, COMI), and radiological (preoperative dural sack cross-sectional area (DSCA), Shizas score (SC), left (LRH) and right (RRH) lateral recess heights, left (LFA) and right (RFA) facet angle) parameters were extracted. Complication (most often re-stenosis due to hematoma and/or residual sensorimotor deficits) rates were higher in the endoscopic (38.9%) than microsurgical (13.5%) treatment group (p<0.01). Age, THR, SC, CRP, and DSCA revealed significant correlations with 3 weeks and 1 year postoperatively evaluated ODI, COMI, eQ5D, NRS leg, or NRS back values in our cohort. We did not observe significant differences in the endoscopic versus microsurgical group for the patient-reported outcomes. Age, THR, SC, CRP, and DSCA revealed significant correlations with patient-centered outcomes and should be considered in future studies. Endoscopic treatment of lumbar spinal stenosis was similarly successful as the conventional microsurgical approach, although it was associated with higher complication rates in our single-center study experience. This was probably because of the surgeons' lack of experience with this method and the resulting different learning curve compared with the conventional technique.
A retrospective cohort study of 19 patients of EOS who underwent MCGR rod instrumentation with subsequent serial distractions, measured using ultrasonography. The degree of distraction achieved during each session were analyzed and subgroup analysis done. The degree of distraction/ distractibility of the MCGR rod is closely linked to the etiology of EOS. The degree of distraction achieved at each session progressively diminishes with successive distractions.SUMMARY
HYPOTHESIS
A previously fit and well 58 year old male suffered from a bilateral psoas haematoma (PH) following 52 days of veno-venous extracorporeal membranous oxygenation (VV-ECMO) for severe Coronavirus disease (COVID-19), refractory to all non-invasive and medical therapies. He developed multiple complications, including inability to walk or weight-bear, due to lumbar plexopathy triggered by bilateral PH compression, compounded by COVID-19-related mononeuritis multiplex. The patient was referred to our institution with a known diagnosis of bilateral PH and after spinal multidisciplinary team (MDT) input, was deemed not for surgical or interventional radiology treatments. The patient received extensive neurorehabilitation, coordinated by multiple MDTs. Although PH has been correlated to COVID-19, to the best of our knowledge this is the first reported case of such a complex presentation resulting in a dramatic bilateral PH. Health records from 3 large UK teaching hospitals were collected regarding treatment and follow up appointments, following patient's written informed consent. Patient's comorbidities, duration in hospital units, MDT inputs, health assessments, mobilisation progress and neurologic assessments, were all recorded. Data was collected retrospectively then prospectively due to lengthy in-patient stay. The literature review was conducted via PubMed and open access sources, selecting all the relevant studies and the ECMO guidelines. Patient received treatment from 3 different units in 3 hospitals over 212 days including 103 days in neurorehabilitation. Involvement of physiotherapy, dietitians, speech and language teams, neurologist, neurophysiotherapists, occupational therapists was required. The patient progressed from a bed-bound coma and inability to walk, to standing with lower limb backslab at discharge. Additionally, he was referred for elective exploratory surgery of the psoas region for scar debridement and potential nerve graft repair of the lumbosacral plexus. The surgery outcome is cautiously optimistic, with some improvement in nerve conduction studies, however is currently unknown regarding recovery progress and return to premorbid functional baseline. The novelty of this presentation yields significant learning points regarding early recognition of PH, requirements for vast MDT input and specialist use of VV-ECMO in severe COVID-19 patients. It also highlights the broad pathophysiology of SARS-CoV-2 causing neuropathy and coagulopathy; understanding this will optimise robust anticoagulation guidelines, required in VV-ECMO.
Spine is a common site for haematological malignancies. Multiple myeloma affects the spine in 70% of cases. New guidelines were published in 2015 to help manage spinal haematological malignancies. Despite neural compression or spinal instability, instrumentation of the spine should be avoided. Surgery carries significant risks of wound complications and more importantly delaying the definitive chemotherapy and radiotherapy. Cement augmentation and bracing for pain and prevention of deformity is key to the new strategies. We aimed to evaluate the different treatment modalities adopted in the spine unit at St George's hospital for spinal haematological malignancies. We compared our practice to the current guidelines published in 2015. Retrospective review of all spinal haematological malignancy patients who were discussed in the spinal MDT and managed through the spine unit at St George's hospital in the period between April 2019 and February 2021. We analysed the demographics of the patients treated in this period and compared the management modalities adopted in the unit to the current British haematological guidelines.Introduction
Methods
Almost 60% of the population can expect to experience low back pain (LBP) during their life. Several radiological tools are used to investigate LBP. However, adequate evidence is unavailable to support the use of single photon emission computer tomography (SPECT) in patients with LBP. The objective of this study is to assess the role and efficiency of SPECT in evaluation and management of patients with LBP. Ninety-two patients with LBP were examined and assessed. All the patients received a magnetic resonance imaging (MRI) scan and were referred for a SPECT. We interpreted the modic and degenerative changes found on the MRI and compared it with SPECT tracer uptake. SPECT was used to identify the pain generator and then a surgical plan was made. Data was analyzed for pain improvement in those who underwent surgical treatment to establish the accuracy of CT SPECT in identification of primary pain generator.Introduction and Objective
Method
Carbon fibre (CF) instrumentation is known to be radiolucent and has a tensile strength similar to metal. A specific use could be primary or oligometastatic cancer where regular surveillance imaging and Stereotactic Radiotherapy are required. CT images are inherently more prone to artefacts which affect Hounsfield unit (HU) measurements. Titanium (Ti) screws scatter more artefacts. Until now it has been difficult to quantify how advantageous the radiolucency of carbon fibre pedicle screws compared to titanium or metallic screws actually is. In this retrospective study, conducted on patients from 2018 to 2020 in SGH, we measured the HU to compare the artifact produced by CF versus Ti pedicle screws and rods implanted in age and sex matched group of patients with oligometastatic spinal disease.Background
Methodology
The correct placement of pedicle screws is a major part of spine fusion and it requires experienced trained spinal surgeons. In the era of European Working Time Directive (EWTD), surgical trainees have less opportunity to acquire skills. Josh Kauffman (Author of The First 20 Hours) examined the K. Anders-Ericsson study that 10,000 hours is required to be an expert. He suggests you can be good at anything in 20 hours following 5 methods. This study was done to show the use of accelerated learning in trainees to achieve competency and confidence on the insertion of pedicle screws. Data was collected using 3 experienced spine surgeons, 8 trainees and 1 novice (control) on the cadaveric insertion of pedicle screws over a 4 day didactic lecture in the cadaver lab. Each candidate had 2 cadavers and 156 screw placements over 4 hour shifts. Data was collected for time of pedicle screw insertion for each level on the left and right side. A pre-course and post-course questionnaire (Likert scale) was conducted.INTRODUCTION
METHODS
The placement of a large interbody implant allows for a larger surface area for fusion, vis a vis, via retroperitoneal direct anterior, antero-lateral and lateral approaches. At the same time, spinal navigation facilitates a minimally invasive fixation for inserting posterior pedicle screws. We report on the first procedures in the United Kingdom performed by a single-surgeon at a single- centre using navigated robot-assisted spine surgery without the need for guide-wires. Whilst positioned in the supine or lateral position, a routine supine anterior lumbar interbody fusion (ALIF), and/or antero-lateral ALIF (AL-ALIF) and/or lateral lateral interbody fusion (LLIF) is performed. The patient is then turned prone or kept in the single lateral position (SPL) for insertion of the posterior screws performed under robotic guidance. Intraoperative CT scan 3D images captured then are sent to the Robotic software platform for planning of the screw trajectories and finally use again at the end of the procedure to confirm screw accuracy. We identified 34 consecutive patients from October 2019 to January 2020 who underwent robotic assisted spine surgery. The demographic, intraoperative, and perioperative data of all these patients were reviewed and presented.Introduction
Materials and Methods
Lumbar fusion remains the gold standard for the treatment of discogenic back pain. Total disc replacement has fallen out of favor in many institutions. Other motion preservation alternatives, such as nucleus replacement, have had limited success and none are commercially available at this time. Two prospective, nonrandomized multicenter studies of lumbar disc nucleus replacement using the PerQdisc 2.0 nucleus replacement device in patients with lumbar discogenic back pain. Early clinical results are presented. A total of 16 patients from 4 international sites (Germany, Paraguay, Canada and Belgium) were enrolled in the trial between May 2019 and February 2021. Data collection points include baseline and postoperatively at 1, 2, 6, and 12 months. Clinical outcome measures were obtained from the Visual Analog Scale (VAS) for back and leg pain, Oswestry Disability Index (ODI), SF-12V2, Analgesic Score (AS), and radiographic assessments. Prospectively gathered data on patient reported outcomes, neurological outcome, surgical results, radiological analysis, and any adverse events. 16 patients had successful implantation of the device. There have been no expulsions of the device. Early postoperative results are available in 13/16 patients at 6 months and 11/16 patients at 12 months. There have been 4 (25%) revision surgeries 3–12 months post implantation between the two trials. 12 of 13 (92%) patients had Minimal Clinically Important Difference (MCID) in ODI at 6 months and 10 of 11 (91%) at 12 months. Mean decrease in ODI from baseline to 12 months was 44.8. At 12 months 8 (73%) patients are not taking pain medication, 1 (9%) patient is taking a narcotic for pain management. 73% of patients are working without restrictions at 12 months post implant. Early clinical and technical results are encouraging. Long term follow up is essential and is forthcoming. Additional patient recruitment and data points are ongoing.
The aim of this study was to identify factors associated with poor outcome following coccygectomy on patients with chronic coccydynia and instability of the coccyx. From the Danish National Spine Registry, DaneSpine, 134 consecutive patients were identified from a single centre who had coccygectomy from 2011 to 2019. Patient demographic data and patient-reported outcomes, including pain measured on a visual analogue scale (VAS), Oswestry Disability Index (ODI), EuroQol five-dimension five-level questionnaire, and 36-Item Short-Form Health Survey questionnaire (SF-36) were obtained at baseline and at one-year follow-up. Patient satisfaction was obtained at follow-up. Regression analysis, including age, sex, smoking status, BMI, duration of symptoms, work status, welfare payment, preoperative VAS, ODI, and SF-36 was performed to identify factors associated with dissatisfaction with results at one-year follow-up.Aims
Methods
Non-coding microRNA (miRNA) in extracellular vesicles (EVs) derived from mesenchymal stem cells (MSCs) may promote neuronal repair after spinal cord injury (SCI). In this paper we report on the effects of MSC-EV-microRNA-381 (miR-381) in a rodent model of SCI. In the current study, the luciferase assay confirmed a binding site of bromodomain-containing protein 4 (BRD4) and Wnt family member 5A (WNT5A). Then we detected expression of miR-381, BRD4, and WNT5A in dorsal root ganglia (DRG) cells treated with MSC-isolated EVs and measured neuron apoptosis in culture by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining. A rat model of SCI was established to detect the in vivo effect of miR-381 and MSC-EVs on SCI.Aims
Methods
The British Spine Registry (BSR) was introduced in May 2012 to be used as a web-based database for spinal surgeries carried out across the UK. Use of this database has been encouraged but not compulsory, which has led to a variable level of engagement in the UK. In 2019 NHS England and NHS Improvement introduced a new Best Practice Tariff (BPT) to encourage input of spinal surgical data on the BSR. The aim of our study was to assess the impact of the spinal BPT on compliance with the recording of surgical data on the BSR. A retrospective review of data was performed at a tertiary spinal centre between 2018 to 2020. Data were collated from electronic patient records, theatre operating lists, and trust-specific BSR data. Information from the BSR included operative procedures (mandatory), patient consent, email addresses, and demographic details. We also identified Healthcare Resource Groups (HRGs) which qualified for BPT.Aims
Methods
High-grade dysplastic spondylolisthesis is a disabling disorder for which many different operative techniques have been described. The aim of this study is to evaluate Scoliosis Research Society 22-item (SRS-22r) scores, global balance, and regional spino-pelvic alignment from two to 25 years after surgery for high-grade dysplastic spondylolisthesis using an all-posterior partial reduction, transfixation technique. SRS-22r and full-spine lateral radiographs were collected for the 28 young patients (age 13.4 years (SD 2.6) who underwent surgery for high-grade dysplastic spondylolisthesis in our centre (Scottish National Spinal Deformity Service) between 1995 and 2018. The mean follow-up was nine years (2 to 25), and one patient was lost to follow-up. The standard surgical technique was an all-posterior, partial reduction, and S1 to L5 transfixation screw technique without direct decompression. Parameters for segmental (slip percentage, Dubousset’s lumbosacral angle) and regional alignment (pelvic tilt, sacral slope, L5 incidence, lumbar lordosis, and thoracic kyphosis) and global balance (T1 spino-pelvic inclination) were measured. SRS-22r scores were compared between patients with a balanced and unbalanced pelvis at final follow-up.Aims
Methods
With recent progress in cancer treatment, the number of advanced-age patients with spinal metastases has been increasing. It is important to clarify the influence of advanced age on outcomes following surgery for spinal metastases, especially with a focus on subjective health state values. We prospectively analyzed 101 patients with spinal metastases who underwent palliative surgery from 2013 to 2016. These patients were divided into two groups based on age (< 70 years and ≥ 70 years). The Eastern Cooperative Oncology Group (ECOG) performance status (PS), Barthel index (BI), and EuroQol-5 dimension (EQ-5D) score were assessed at study enrolment and at one, three, and six months after surgery. The survival times and complications were also collected.Aims
Methods
Spinal fusion remains the gold standard in the treatment of idiopathic scoliosis. However, anterior vertebral body tethering (AVBT) is gaining widespread interest, despite the limited data on its efficacy. The aim of our study was to determine the clinical efficacy of AVBT in skeletally immature patients with idiopathic scoliosis. All consecutive skeletally immature patients with idiopathic scoliosis treated with AVBT enrolled in a longitudinal, multicentre, prospective database between 2013 and 2016 were analyzed. All patients were treated by one of two surgeons working at two independent centres. Data were collected prospectively in a multicentre database and supplemented retrospectively where necessary. Patients with a minimum follow-up of two years were included in the analysis. Clinical success was set a priori as a major coronal Cobb angle of < 35° at the most recent follow-up.Aims
Methods
We aimed to establish the short- and long-term efficacy of corticosteroid injection for coccydynia, and to determine if betamethasone or triamcinolone has the best effect. During 2009 to 2016, we treated 277 patients with chronic coccydynia with either one 6 mg betamethasone or one 20 mg triamcinolone cortisone injection. A susequent injection was given to 62 (26%) of the patients. All were reviewed three to four months after injection, and 241 replied to a questionnaire a mean of 36 months (12 to 88) after the last injection. No pain at the early review was considered early success. When the patient had not been subsequently operated on, and indicated on the questionnaire that they were either well or much better, it was considered a long-term success.Aims
Methods
The aim of this study was to systematically compare the safety and accuracy of robot-assisted (RA) technique with conventional freehand with/without fluoroscopy-assisted (CT) pedicle screw insertion for spine disease. A systematic search was performed on PubMed, EMBASE, the Cochrane Library, MEDLINE, China National Knowledge Infrastructure (CNKI), and WANFANG for randomized controlled trials (RCTs) that investigated the safety and accuracy of RA compared with conventional freehand with/without fluoroscopy-assisted pedicle screw insertion for spine disease from 2012 to 2019. This meta-analysis used Mantel-Haenszel or inverse variance method with mixed-effects model for heterogeneity, calculating the odds ratio (OR), mean difference (MD), standardized mean difference (SMD), and 95% confidence intervals (CIs). The results of heterogeneity, subgroup analysis, and risk of bias were analyzed.Aims
Methods
Magnetically controlled growing rods (MCGR) have been gaining popularity in the management of early-onset scoliosis (EOS) over the past decade. We present our experience with the first 44 MCGR consecutive cases treated at our institution. This is a retrospective review of consecutive cases of MCGR performed in our institution between 2012 and 2018. This cohort consisted of 44 children (25 females and 19 males), with a mean age of 7.9 years (3.7 to 13.6). There were 41 primary cases and three revisions from other rod systems. The majority (38 children) had dual rods. The group represents a mixed aetiology including idiopathic (20), neuromuscular (13), syndromic (9), and congenital (2). The mean follow-up was 4.1 years, with a minimum of two years. Nine children graduated to definitive fusion. We evaluated radiological parameters of deformity correction (Cobb angle), and spinal growth (T1-T12 and T1-S1 heights), as well as complications during the course of treatment.Aims
Methods
The current pandemic caused by COVID-19 is the biggest challenge for national health systems for a century. While most medical resources are allocated to treat COVID-19 patients, several non-COVID-19 medical emergencies still need to be treated, including vertebral fractures and spinal cord compression. The aim of this paper is to report the early experience and an organizational protocol for emergency spinal surgery currently being used in a large metropolitan area by an integrated team of orthopaedic surgeons and neurosurgeons. An organizational model is presented based on case centralization in hub hospitals and early management of surgical cases to reduce hospital stay. Data from all the patients admitted for emergency spinal surgery from the beginning of the outbreak were prospectively collected and compared to data from patients admitted for the same reason in the same time span in the previous year, and treated by the same integrated team.Aims
Methods
Inflammatory response plays a pivotal role in the pathophysiological process of intervertebral disc degeneration (IDD). A20 (also known as tumour necrosis factor alpha-induced protein 3 (TNFAIP3)) is a ubiquitin-editing enzyme that restricts nuclear factor-kappa B (NF-κB) signalling. A20 prevents the occurrence of multiple inflammatory diseases. However, the role of A20 in the initiation of IDD has not been elucidated. The aim of the study was to investigate the effect of A20 in senescence of TNF alpha (TNF-α)-induced nucleus pulposus cells (NPCs). Immunohistochemical staining was performed to observe the expression of A20 in normal and degenerated human intervertebral discs. The NPCs were dissected from the tail vertebrae of healthy male Sprague-Dawley rats and were cultured in the incubator. In the experiment, TNF-α was used to mimic the inflammatory environment of IDD. The cell viability and senescence were examined to investigate the effect of A20 on TNF-α-treated NPCs. The expression of messenger RNA (mRNA)-encoding proteins related to matrix macromolecules (collagen II, aggrecan) and senescence markers (p53, p16). Additionally, NF-κB/p65 activity of NPCs was detected within different test compounds.Aims
Methods
Severe spinal deformity in growing patients often requires surgical management. We describe the incidence of spinal deformity surgery in a National Health Service. Descriptive study of prospectively collected data. Clinical data of all patients undergoing surgery for spinal deformity between 2005 and 2018 was collected, compared to the demographics of the national population, and analyzed by underlying aetiology.Aims
Methods
Lower back pain is a leading cause of disability and a common condition seen by osteopaths. Evidence and advice for the safest lifting posture vary, as do healthcare practitioners' attitudes towards back pain. The aim of this study was to understand osteopaths' beliefs about safe lifting postures, their attitudes towards back pain, and to compare these findings with published data from physiotherapists and manual handling advisors. A cross-sectional electronic survey was used to invite a sample of UK osteopaths to select images that best represent their perception of safe lifting posture (straight or rounded back), and to complete the Back Pain Attitudes Questionnaire (Back-PAQ, Appendix 1). Data was analysed to assess lifting posture selection and relationship to back pain attitudes. 46 (85.2%) out of 54 osteopaths selected straight back posture as safest, these participants had significantly more negative attitudes to back pain injury (i.e. higher Back-PAQ scores), than the 8 osteopaths who selected a rounded back posture (p = 0.007). Data from 266 physiotherapists and 132 manual handling advisors revealed an overall agreement about straight back lifting posture, however revealed differences in Back-PAQ attitude between the professions.Purpose and background
Methods and results
Non-specific chronic low back pain (NSCLBP) poses a significant disability and economic burden worldwide. Fear avoidance is suggested to contribute to its chronicity and reduced treatment effect. National guidelines recommend exercise as a component of multidisciplinary rehabilitation but its interaction with fear avoidance is ambiguous. This systematic review examined the effect of exercise-based interventions (EBIs) on fear avoidance NSCLBP. RCTs comparing EBIs to usual care in adults with NSCLBP were included. A systematic search of CINAHL, Medline, EMBASE, Web of Science, Scopus and Cochrane Library (up to January 2019) revealed 10 eligible trials. Following risk of bias assessment, 6 studies were included for data extraction and narrative synthesis. EBIs were not found superior to usual care in reducing fear avoidance at any follow-up. There was evidence that reducing fear avoidance is probably not the mechanism through which EBIs affect pain and disability. In adherent patients, EBIs did not result in greater clinically relevant improvements in pain or disability than usual care, in the short- or intermediate-term.Background and Purpose
Methods and Results
The rate of subsidence for lumbar fusion surgery is variable from 7- 89%. Subsidance can affect the outcome of surgery by compramising alignment, foraminal height and stability. Modic changes have been shown to affect the stiffness and strength of the vertebral end plate and shown to affect both fusion rates and clinical outcome. Ongoing laboratory investigations into the material properties of the degenerate lumbar spine show modic changes affect the end plate and trabecular bone mechanics. This study aims to bridge this basic science research into clinical practice. A retrospective analysis of all patients in two tertiary spinal centres who have undergone lumbar interbody fusion with the implantation of a ‘cage’ over the past 6 years were analysed by two independent spinal surgeons. Pre-operative MRI findings were correlated with post-operative interbody cage subsidence after 1 year.Background
Methods
Despite several hundred RCTs of exercise for persistent non-specific low back pain (NSLBP), the treatment targets of exercise are unclear. In a systematic review we observed 30 direct and indirect treatment targets of exercise described across 23 RCTs for persistent NSLBP. Since not all treatment targets and outcomes can be assessed in all RCTs, it is therefore important to prioritise these treatment targets through consensus from key stakeholders. These consensus workshops aimed to agree treatment targets for the use of exercise interventions in randomised controlled trials (RCTs) in persistent NSLBP using nominal group workshop (NGW) methodology. The first UK workshop included people who had experience of exercise to manage their persistent NSLBP, clinicians who prescribe exercise for persistent NSLBP, and researchers who design exercise interventions tested in RCTs. The second workshop included participants attending an international back and neck pain research workshop. Twelve participants took part in the UK NGW and fifteen took part in the final ranking of the exercise treatment targets. In addition to the original list of 30 treatment targets, a further 26 ideas were generated. After grouping and voting, 18 treatment targets were prioritised. The top five ranked targets of exercise interventions for persistent NSLBP were: pain reduction, improvement in function, reduction of fear of movement, encouragement of normal movement and improvement of mobility. The results of the international NGW will also be presented.Background and Aim of Study
Methods and Results
Clinical researchers use Pfirrmann classification for grading intervertebral disc degeneration radiologically. Basic researchers have access to morphology and instead use the Thompson score. The aim of this study was to assess the inter-observer reliability of both classifications, along with their correlation. We obtained T2-weighted MR images of 80 human lumbar intervertebral discs with various stages of degeneration to assess the Pfirrmann-score. Then the discs were dissected midsagittally to obtain the Thompson-score. The observers were typical users of both grading systems: a spine surgeon, radiology resident, orthopaedic resident, and a basic scientist, all experts on intervertebral disc degeneration. Cohen's kappa (CK) was used to determine inter-observer reliability, and intra-class correlation (ICC) as a measure for the variation between the outcomes. For the Thompson score, the average CK was 0.366 and ICC score 0.873. The average inter-observer reliability for the Pfirrmann score was 0.214 (CK) and 0.790 (ICC). Comparing the grading systems, the intra-observer agreement was 0.240 (CK) and 0.685 (ICC).Purpose of study and background
Methods and Results
Injectable hydrogels via minimally invasive surgery offer benefits to the healthcare system, reduced risk of infection, scar formation and the cost of treatment. Development of new treatments with the use of novel biomaterials requires significant pre-clinical testing and must comply with regulations before they can reach the bedside. In the European economic area (EEA) one of the first hurdles of this process is attaining the CE marking which protects the health, safety and environmental aspects of a product. Implanted materials fall under the class III medical device EU745 regulation standards. To attain the CE marking for a product parties must provide evidence of the materials safety with an investigational medicinal product dossier (IMPD). We have been working to develop a new thermoresponsive injectable biomaterial hydrogel (NPgel) for the treatment of intervertebral disc (IVD) disease. A large part of the IMPD requires information on how the hydrogel physical properties change over time in bodily conditions. We have been studying 6 batches of NPgel over 18 months, tracking the materials wet/ dry weight, structure and composition. To date we have found that NPgel in liquids more similar to the body (with protein and salts) appear to be stable and safe, whilst those in distilled water swell and disintegrate over time. Subtle long-term changes to the material composition were found and we are currently investigating its ramifications.Introduction
Methods and Results
We have developed a new synthetic hydrogel that can be injected directly into the intervertebral disc (IVD) without major surgery. Designed to improve fixation of joint prosthesis, support bone healing or improve spinal fusion, the liquid may support the differentiation of native IVD cells towards osteoblast-like cells cultured within the hydrogel. Here we investigate the potential of this gel system (Bgel) to induce bone formation within intervertebral disc tissue. IVD tissue obtained from patients undergoing discectomy, or cadaveric samples, were cultured within a novel explant device. The hydrogel was injected, with and without mesenchymal stem cells (MSCs), and cultured under hypoxia, to mimic the degenerate IVD environment, for 4 weeks. Explants were embedded to wax and native cellular migration into the hydrogel was investigated, together with cellular phenotype and matrix deposition.Introduction
Methods
Modic changes (MC) are a risk factor for development of chronic low back pain (CLBP). There is no agreement about the cause of inflammation in MC, but autoimmunity has been suggested. The aim of the study was to investigate whether treatment with lactic acid bacteria for 100 days was associated with change of disability and pain, via a change in the gut microbiota inducing a change in the immune system, in patients with CLBP and type 1 MC during one year follow-up. Eighty-nine patients with CLBP and type 1 MC were randomized to receive either one capsule Background and purpose
Methods
Intervertebral disc degeneration (IVDD) associated with low back pain is a major contributor to global disability. Current treatments are poorly efficient in the long-term resulting in medical complications. Therefore, minimally invasive injectable therapies are required to repopulate damaged tissues and aid regeneration. Among injectable biomaterials, self-assembling peptide hydrogels (SAPHs) represent potential candidates as 3D cell carriers. Moreover, the advent of graphene-related materials has opened the route for the fabrication of graphene-containing hydrogel nanocomposites to direct cellular fate. Here, we incorporated graphene oxide (GO) within a SAPH to develop a biocompatible and injectable hydrogel to be used as cell carrier to treat IVDD. Hydrogel morphology and mechanical properties have been investigated showing high mechanical properties (G'=12kPa) comparable with human native nucleus pulposus (NP) tissue (G'=10kPa), along with ease of handling and injectability in dry and body fluid conditions. Hydrogel nanocomposites resulted biocompatible for the encapsulation of bovine NP cells, showing higher viability (>80%) and metabolic activity in 3D cell culture over 7 days, compared to GO-free hydrogels. Moreover, GO has demonstrated to bind TGF-β3 biomolecules with high efficiency, suggesting the use of GO as local reservoir of growth factors within the injected hydrogel to promote extracellular matrix deposition and tissue repair.Introduction
Methods and results
The EU-funded Back-UP project aims to develop a cloud computer platform to guide the treatment of low back and neck pain (LBNP) in first contact care and early rehabilitation. In order to identify evidence-based treatment options that can be recommended and are accessible to people with LBNP across Europe, we conducted a systematic review of recently published guidelines. Electronic databases, including Medline, Embase, CINAHL, PsycINFO, HMIC, Epistemonikos, PEDro, TRIP, NICE, SIGN, WHO, Guidelines International Network (G-I-N) and DynaMed Plus were searched. We searched for guidelines published by European health professional or guideline development organisations since 2013, focusing on the primary care management of adult patients presenting with back or neck pain (including whiplash associated symptoms, radicular pain, and pregnancy-related LBP). The AGREE-II tool was used to assess the quality of guideline development and reporting.Background and aims
Methods
Both overall spine shape and the size and shape of individual vertebrae undergo rapid growth and development during early childhood. Motor development milestones such as age of walking influence spine development, with delayed ambulation linked with spinal conditions including spondylolysis. However, it is unclear whether associations between motor development and spine morphology persist into older age. Therefore, these associations were examined using data from the MRC National Survey of Health and Development, a large nationally-representative British cohort, followed up since birth in 1946. Statistical shape modelling was used to characterise spinal shape (L5-T10) and identify modes of variation in shape (SM) from dual energy x-ray absorptiometry images of the spine taken at age 60–64 years (N=1327 individuals; 51.8% female). Associations between walking age in months (reported by mothers at 2 years) and SMs were examined with adjustment for sex, birthweight, socioeconomic position, height, lean mass and fat mass. Later onset of independent walking was weakly associated with greater lordosis (SM1; Purpose and Background
Methods and Results
Trunk muscle activity and thoraco-lumbar kinematics have been shown to discriminate non-specific chronic low back pain (NSCLBP) subgroups from healthy controls. Thoracic spine kinematics and muscle activity whilst intuitively associated with NSCLBP, has received less attention and the possibility of intra-regional interactions remains an area for exploration. Determine relationships between muscle activation and kinematics in active extension pattern (AEP) and flexion pattern (FP) subgroups and no-low back pain controls during a sagittal bending task.Background
Purpose
Gore and Nadkarni described a ‘Gore sign’ of reproducing radiating leg pain by palpation of distal nerve root endings in the foot for L5 and S1 nerve roots in lumbar radiculopathy due to disc prolapse. This sign was explored and observation of symptoms recorded.Background
Purpose
To establish if the subjective features of both bilateral leg pain and sexual dysfunction are presenting features in cauda equina syndrome (CES). There appears to be conflicting expert opinion ‘red flag’ symptoms in the context of CES with many experts basing clinical decisions on the objective clinical findings only. Bilateral radiculopathy has been suggested as a possible sign of suspected CES, although a consensus statement by BASS and SBNS makes no reference to either this or sexual dysfunction. However, bilateral leg pain is included in the NICE clinical knowledge summary and sexual dysfunction is highlighted within CES guidance by the American Association of Neurological Surgeons.Purpose
Background
NICE guidance suggests that caudal epidural injections of steroid and local anaesthetic may be considered for acute and severe sciatica, however studies have demonstrated limited long-term benefit and impact on future surgery. This study aimed to investigate the use of caudal epidural injections in a district general hospital setting and the rate of subsequent operation. All patients undergoing caudal epidural injection between 1st January and 30th June 2015 were included. Records were reviewed to obtain diagnosis, pre- and post-epidural clinical findings, prior interventions, and subsequent operations.Background
Methods
Evidence supports that dysfunction of descending inhibition (endogenous analgesic (EA) modulation) contributes towards chronic pain conditions. Research suggests that manual therapy may influence EA modulation; however, this is poorly understood. Trials testing the effect of sustained digital pressure, a commonly used manual therapy technique, using pain pressure threshold (PPT) would give us a better understanding of the influence of manual therapy on EA modulation. A measurement of PPT has been shown to be most effective using fingertip pressure due to the palpatory feedback of symptomatic tissues. A cross-sectional observational study, utilizing a repeated measure approach.Background
Design
Low back pain is the leading cause of musculoskeletal disease and the biggest cause of morbidity worldwide. Approximately 40% of these are cases are caused by disease of the intervertebral discs (IVDs): the shock absorbing, flexible material located between the bones (vertebrae) along the length of the spine. In severe cases, the spine becomes unstable and it becomes necessary to immobilise or fix the joint in position using a lumbar cage spacer between in the IVD and metal pins with supporting plates in the vertebrae. This is a complex, expensive, major surgery and it is associated with complications, such as spinal fusion failure and inappropriate implant position. These complications have a dramatic impact on the quality of life of the affected patients and the burden to society and the healthcare system is exacerbated. We present an Introduction
Methods and Results
The preliminary study aimed to establish clinical and research expert opinion with regards to the key components of an assessment of a person with Mechanical Low Back Pain (MLBP). We aimed to identify the key subjective questions and objective tests which would be helpful for clinicians to develop the most appropriate self-management exercise programme. This is the first part of the study to develop the ‘Back-to-Fit’ digital tool offering personalised self-management exercise solutions for people with MLBP. Summary of the methods A Bristol online survey which included a questionnaire with a series of open and closed questions was developed using the literature and was distributed among clinicians/researchers with a background in the clinical management of MLBP. The questionnaire included 6 demographic questions followed by sections related to subjective questions and objective tests of the MLBP assessment. 71 participants responded to the survey. In the subjective assessment component, ≥80% level of agreement was obtained for 17 of 26 proposed subjective questions and 05 of the 21 suggested objective tests. Two more questions and two objective tests to be included in the assessment had been suggested by the partcipants.Purpose of the study and background
Results
Mesenchymal stem cells (MSCs) are undergoing evaluation as a potential new therapy for immune and inflammatory-mediated conditions such as IVD degeneration (IDD). Both adipose (ASCs) and bone-marrow (BMSCs) derived MSCs have been widely used in this regard. The optimal tissue source and expansion conditions required to exploit the regenerative capacity of these cells are not yet fully elucidated. In addition the phenotypic response of transplanted cells to the disease environment is not well understood. In this study, ASCs and BMSCs were exposed to a combination of hypoxic conditioning and selected inflammatory mediators, conditions that mimic the microenvironment of the degenerate IVD, in an effort to understand their therapeutic potency for Donor-matched ASCs and MSCs were pre-conditioned with either IL-1β (10ng/ml) or TNFα (10ng/ml) for 48 hours under hypoxic conditions (5% O2). Conditioned media was collected and 45 different immunomodulatory proteins were analysed using human magnetic Luminex® assay. Secreted levels of several key cytokines and chemokines, both pro- and anti-inflammatory, were significantly upregulated in ASCs and BMSCs following the conditioning regime. Under all conditions tested, ASCs expressed significantly higher levels of IL-4, IL-6, IL-10, IL-12, TGF-α, and GCSF compared to BMSCs. Pre-conditioning with TNFα resulted in significantly higher levels of IL-10 while preconditioning with IL-1β resulted in higher levels of IL-6, IL-12 and GCSF.Background
Methods and Results
The intervertebral disc is constantly subjected to forces generated by movement. But degeneration can disrupt normal biomechanics, generating uneven and complex loading patterns. Evidence suggests that these forces are converted into voltages through different mechanisms, such as streaming potentials. This implicates voltage-gated ion channels in the biological remodelling response of the disc to loading. These signalling pathways have not been studied, and this incomplete understanding of disc mechanotransduction may hinder regenerative therapies. The purpose of this study is to identify and determine the role of voltage-gated ion channels in the intervertebral disc and to investigate any changes in degeneration. Primary bovine and human disc cells were cultured in monolayer or alginate beads for experiments. Cells were treated with altered osmolarity alone or in combination with IL-1β. Ion flux was measured through calcium influx and will be further investigated using the xCelligence RTCA CardioECR. Immunohistochemistry was performed on human and bovine discs to evaluate expression levels of ion channels. RNA was extracted from bovine NP cells and will be analysed through PCR/Microarray for gene expression.Purpose and Background
Methods and Results
This report presents independent research commissioned by the National Institute for Health Research (NIHR) (NIHR HTA project number 12/201/09). NEF is a Senior NIHR Investigator and was supported through an NIHR Research Professorship (NIHR-RP-011-015). KK was supported by a HEFCE Senior Clinical Lectureship award. The views and opinions expressed by authors in this publication are those of the authors and do not necessarily reflect those of the NHS, the NIHR, MRC, CCF, NETSCC, the Health Technology Assessment programme or the Department of Health. Stratified care (SC) has previously been found to be a cost-effective approach for primary care LBP patients. The SCOPiC trial compared the clinical and cost-effectiveness of a modified SC model combining prognostic and clinical characteristics to allocate sciatica patients into one of three groups (with matched care pathways) versus non-stratified, usual care (UC).Funding
Background and Purpose
Sensory profiles classified in Low Registration, Sensory Sensitive, Sensation Avoiding and Sensation Seeking may be used in patients with non-specific chronic low back pain (CLBP) to develop a more personalized treatment program. Although psychometric properties have not been studied up till now the Adult Adolescent Sensory Profile (AASP) can be used to measure sensory profiles in CLBP patients. The study aim was to asses internal consistency, test-retest reliability, agreement and construct validity of the AASP in a CLBP population with nociplastic pain.Introduction
Objectives
We have previously reported the development of injectable hydrogels for potential disc regeneration (NPgel) or bone formation which could be utilized in spinal fusion (Bgel). As there are multiple sources of mesenchymal stem cells (MSCs), this study investigated the incorporation of patient matched hMSCs derived from adipose tissue (AD) and bone marrow (BM) to determine their ability to differentiate within both hydrogel systems under different culture conditions. Human fat pad and bone marrow derived MSCs were isolated from femoral heads of patients undergoing hip replacement surgery for osteoarthritis with informed consent. MSCs were encapsulated into either NPgel or Bgel and cultured for up to 6 weeks in 5% (NPgel) or 21% (Bgel) O2. Histology and immunohistochemistry was utilized to determine phenotype. Both fat and bone marrow derived MSCs, were able to differentiate into both cell lineages. NPgel culture conditions increased expression of matrix components such as collagen II and aggrecan and NP phenotypic markers FOXF1 and PAX1, whereas Bgel induced expression of collagen I and osteopontin, indicative of osteogenic differentiation.Purpose of study and background
Methods and Results
Musculoskeletal diseases are the biggest cause of morbidity worldwide, with low back pain (LBP) being the leading cause. Forty percent of LBP cases are caused by disease of shock absorbers in the spine known as intervertebral discs (IVDs). The IVDs enable the spine to twist and bend, whilst absorbing load during normal daily activities. The durability of this tissue is sustained by the cells of the spine and so during disease or mechanical damage these cells can behave abnormally further damaging the disc and stimulating local nerves causing extreme pain. Degradation of the intervertebral disc (IVD) currently has no preventative treatment; an injectable hydrogel biomaterial could reinforce disc mechanical properties and promote tissue regeneration. We present an injectable range of hydrogel biomaterials made from water, clay and polymer that set at 37°C. The materials were made at 80°C polymerised in water and stored at 70°C to remain liquid. The physical properties of the materials were assessed using various methods, including mechanical assessment using temperature-controlled rheometry to monitor the liquid-hydrogel transition.Introduction
Methods and Results
Mechanical overloading initiates intervertebral disc degeneration, presumably because cells break down the extracellular matrix (ECM). We used Fourier Transform Infrared Spectroscopy (FTIR) imaging to identify, visualize and quantify the ECM and aimed to identify spectroscopic markers for early disc degeneration. In seven goats, one disc was injected with chondroitinase ABC (mild degeneration) and after three months compared to control.
Purpose of study and background
Methods and Results
To assess the test-retest reliability, construct validity and determine the cut-off scoret of BACKonLINE™ for people with LBP. Appropriate treatment for Low back pain (LBP) is vital, however patients can wait for 14–24 weeks on NHS Physiotherapy lists. Many factors contribute to LBP and initially can be due to peripheral tissue damage. However, persistent LBP is associated with amplification in pain processing in the central nervous system (central sensitisation-CS). CS often results in poorer outcomes and often requires longer management making timely assessment and appropriate management crucial. An online self-assessment and self-management tool (BACKonLINE™) for discerning between characteristics of predominantly centrally (CD) or peripherally (PD) driven LBP was developed using a Delphi study.Purpose of the Study
Background
Degeneration of the intervertebral disc (IVD) is a leading cause of lower back pain, and a significant clinical problem. Inflammation mediated by IL-1β and TNF-α drives IVD degeneration through promoting a phenotypic switch in the resident nucleus pulposus (NP) cells towards a more catabolic state, resulting in extracellular matrix degradation. Bone marrow mesenchymal stem cells (MSCs) produce bioactive factors that modulate local tissue microenvironments and their anti-inflammatory potential has been shown in numerous disease models. Thus MSCs offer a potential therapy for IVD degeneration. In a clinical setting, adipose-derived stem cells (ASCs) might represent an alternative and perhaps more appealing cell source. However, their anti-inflammatory properties remain poorly understood. Here we assess the anti-inflammatory properties of donor-matched human ASCs and MSCs using qPCR and western blotting.Background
Methods
Clinical guidelines identify a clear role for managing back pain with structured exercise. Pilates is a commonly recommended modality, however, Pilates-specific research is limited. Research suggests the patient-practitioner relationship may be important in managing persistent low back pain, although further research is needed to evaluate its impact on outcomes. The purpose of this study was to identify the components of the relationship between Pilates teachers and clients with persistent low back pain. This qualitative study used a multi-site, ethnographically-informed methodology. Data collection included observation of 24 Pilates sessions at eight sites across the South of England, and 19 semi-structured interviews with Pilates teachers and clients with persistent low back pain. Data were audio-recorded, transcribed verbatim and analysed thematically. From the interviews and observations, ten themes emerged, of which four related to components of the relationship: (1) ‘being known’; (2) support; (3) teacher expertise; and (4) mastery of exercises, facilitated by the teacher. Key influences on the relationship were identified in four themes: (5) professional identity of Pilates teachers; (6) health perceptions; (7) social influences such as group dynamic; and (8) service perceptions. An additional two themes described the perceived impact of the relationship: (9) feelings of safety; and (10) ‘feeling good’.Purpose
Methods and Results
SPECT-CT is a hybrid imaging modality, which has become very well established in the diagnosis of inflammatory, vascular and malignant processes affecting the spine. However, little evidence exists on its application with degenerative pathologies. Systematic review on the use of SPECT-CT in the diagnosis of degenerative facet joint arthropathy.Background Context
Purpose & Study Design
Intervertebral disc (IVD) degeneration is a prominent cause of low back pain. IVD cells expressing angiopoietin-1 receptor Tie2 represent a progenitor cell population which decreases with progression of IVD degeneration. Homing of mesenchymal stem cells (MSCs) is a physiological mechanism aiming to enhance the regenerative capacity of the IVD. The purpose of this study was to assess the effect of MSC homing on the Tie2 positive IVD progenitor cell population, the IVD cell viability, and the proliferative phenotype of the IVD cells. Human MSCs were isolated from bone marrow aspirates and labelled with fluorescent dye. Whole IVDs with endplates were harvested from bovine tails; MSCs were placed on the endplates. Human traumatic, degenerative and healthy IVD tissues were obtained from patients and organ donors. MSCs were added onto tissue samples. After 5 days, IVD cells were isolated. Percentages of Tie2 positive, DAPI positive (dead) and Ki-67 positive (proliferative) IVD cells were determined. MSC homing or co-culture significantly increased the proportion of Tie2 positive progenitor IVD cells in bovine and 7/10 human IVDs, decreased the fraction of dead IVD cells in bovine and 7/10 human IVDs, and induced a proliferative phenotype in bovine and 5/6 human IVDs.Background and Purpose
Methods and Results
Various studies have highlighted issues regarding the prevalence of back pain due to lead apron use. The health and safety executive guidelines on personal protection equipment state that an employee should be able to carry the weight of a lead apron without injury (HSE, 2017). It has been suggested that wearing a 15 pound lead apron can place pressures of up to 300 pounds per square inch of the intervertebral discs (Khalil, 1993), ‘interventionalist's disc disease’ has been identified as a confirmed entity (Ross et al. 1997). To evaluate the prevalence of back pain amongst theatre staff and correlate this to lead apron use.Background
Aim
Improving primary care management of musculoskeletal (MSK) pain is a priority. A pilot cluster RCT tested prognostic stratified care for patients with common MSK pain presentations, including low back pain, in 8 UK general practices (4 stratified care; 4 usual care) with 524 patients. GPs in stratified care practices were asked to use i) the Keele STarT MSK tool for risk-stratification and ii) matched treatment options for patients at low-, medium- and high-risk of persistent pain. A linked qualitative process evaluation explored patients' and GPs' views and experiences of stratified care. Individual ‘stimulated-recall’ interviews with patients and GPs in the stratified care arm (Background
Methods
An integrated rehabilitation programme was developed and found feasible taking into account the existing evidence base, appropriate theories, and patient and public involvement. The integrated programme encompasses inpatient activities supported by a multidisciplinary team, and integration of knowledge, skills and behaviours in the patient's everyday life. The aim of this trial was to compare the effectiveness of an integrated rehabilitation programme with an existing rehabilitation programme in patients with chronic low back pain (CLBP). Comparison of two parallel rehabilitation programmes in a randomised controlled trial including 165 patients with CLBP. The integrated rehabilitation programme comprised an alternation of in total three weeks of inpatient stay and in total 11 weeks of home-based activities. The existing rehabilitation programme comprised a four-week inpatient stay. Primary outcome was changes in disability (Oswestry Disability Index). Secondary outcomes were changes in pain, pain self-efficacy, health related quality of life and depression. Outcomes were collected at baseline and 26-week follow-up. Disability decreased −5.76 (95%CI; −8.31, −3.20) for the integrated programme and −5.64 (95%CI; −8.45, −2.83) for the existing programme. The adjusted difference between the two programmes was −0.28 (95%CI; −4.02, 3.45). No statistically significant difference was found in any of the secondary outcomes.Purpose of the study and background
Methods and Results
Novel regenerative therapies have the potential to restore function and relieve pain in patients with low back pain (LBP) caused by intervertebral disc (IVD) degeneration. We have previously shown that stimulation of adipose-derived stem cells (ASCs) with growth differentiation factor-6 (GDF6) promotes differentiation into nucleus pulposus (NP) cells of the IVD, which have potential for IVD regeneration. We have also shown that GDF6 stimulation activates the Smad1/5/8 and ERK1/2 signalling cascades. The aim of this study was to progress our understanding of the immediate/early response mechanisms in ASCs (N=3) which may direct GDF6-induced differentiation. RNAseq was used to perform transcriptome-wide analysis across a 12-hour time course, post-stimulation. Gene ontology analysis revealed greater transcription factor and biological processes activity at 2hrs than at the 6hr and 12hr time points, where molecular and cellular activities appeared to stabilise. Interestingly, a number of lineage determining genes were identified as differentially expressed and work is ongoing to investigate whether the early response genes are maintained throughout differentiation, or whether they are responsible for early NP lineage commitment.Study purpose and background
Methods and results
Adherence to clinical guidelines produces greater improvement in disability in patients with low back pain (LBP), but a wide variation in physiotherapists' adherence has been documented repeatedly. The aim of the study was to investigate the adherence to National Clinical Guidelines for LBP among Danish physiotherapists with regard to three key guideline domains: 1) activity, 2) work, and 3) psychosocial risk factors. Additionally to investigate whether adherence differed between physiotherapists working in private clinics and physiotherapists working at public healthcare centres. A cross-sectional online survey was conducted with 817 Danish physiotherapists. Adherence to the three guideline domains was assessed using two vignettes. The difference in adherence between the groups was assessed using the chi-squared test.Background and purpose
Methods
Degeneration of the intervertebral disc is a strong contributor of low back pain. Studies have shown that both, mechanical unloading and overloading, lead to disc degeneration. This is intuitively clear if one considers that an intervertebral disc essentially is a poro-elastic material embedded with cells, which depend on fluid flow for the transport of nutrients and waste products. As such, mechanical loading is also required for regeneration. It is unclear, however, how much loading is beneficial or detrimental for the healthy or degenerated disc. We developed a loaded disc culture system for the long-term study of disc physiology. This way we could control both the mechanical and biochemical conditions. If no loading was applied, about half of the cells died within a week. Cells died under a low dynamic loading regime after three weeks. A diurnal loading regime rescued cell viability, gene expression profile and mechanical behavior of the discs. Both static and dynamic overloading induced damage to the discs and led to catabolic and inflammatory gene expressions.Purpose of study and background
Methods and Results
The Keele STarT Back approach is effective for stratifying patients with low back pain in primary care, but a similar approach has not been tested with a broader range of patients with musculoskeletal (MSK) pain. We report a feasibility and pilot trial examining the feasibility of a future main trial of a primary care based, risk-stratification (STarT MSK) approach for patients with back, neck, knee, shoulder or multi-site pain. A pragmatic, two-parallel arm, cluster randomised controlled trial (RCT) in 8 GP practices (4 stratified care involving use of the Keele STarT MSK tool and matched treatment options: 4 usual care). Following screening, adults with one of the five most common MSK pain presentations were invited to take part in data collection over 6 months. Feasibility outcomes included exploration of selection bias, recruitment and follow-up rates, clinician engagement with using the Keele STarT MSK tool and matching patients to treatments.Background and aims
Methods
Axial Spondyloarthritis (axSpA) is commonly mistaken as chronic mechanical back pain. Delayed diagnosis averages 5- 8 years with impacts on effective and timely management, outcomes and quality of life. NICE Guidance (2017) highlights the importance of the recognition and referral of suspected axial spondyloarthritis. This study investigated the occurrence of physiotherapy care prior to diagnosis of axSpA within physiotherapy outpatient settings. A retrospective review was performed of all patients diagnosed with axSpA who had received physiotherapy care prior to their diagnosis from 1990–2016. Three or more episodes of care prior to diagnosis was taken as unrecognised axSpA. Information was obtained on diagnostic codes, number of episodes of care and contacts per episode from nine outpatient physiotherapy services. Analysis showed that 263 people (17–69 years) diagnosed with axSpAs had received physiotherapy care prior to diagnosis. Within this population, 103 (44%) had received ≥3 episodes of care. Number of contacts within each episode ranged from 3 (47 people) to 58 (1 person) [median=11 contacts-10 people]. Average time from initial physiotherapy episode to date of diagnosis was 6.4 years (range=0.3–12.8 years, median=8.8 years). The most common assigned diagnostic code was back pain (49.6%), followed by shoulder (11.1%), knee (8.5%), neck (7.7%), ankle/foot (4.3%), tendonitis (4.2%), joint pain (3.4%), osteoarthritis (3.4%) and sacroiliac joint (2%).Background and purpose of the study
Methods and results
Depression, anxiety, catastrophising, and fear-avoidance beliefs are some of the so-called “yellow flags” that predict a poor outcome in back patients. Many surgeons have difficulty assessing yellow flags, perhaps due to the complexity of existing instruments and time constraints during consultations. We developed a brief tool to allow the systematic evaluation of core flags. Data from 4 questionnaires (ZUNG depression (N=399); Hospital Anxiety and Depression Scale (Anxiety-subscale) (N=308); Pain Catastrophising (N=766); Fear Avoidance Beliefs (N=736)) were analysed to identify the respective single item that best represented the full scale score. The 4 items formed the “Core Yellow Flags Index” (CYFI). 1'768 patients completed CYFI and a Core Outcome Measures Index (COMI) preoperatively, and COMI 3 and 12mo later (FU).Background
Methods
Acute and chronic spinal pain are major causes of disability, and many patients use analgesics to treat their pain. However, increased use of analgesics, particularly prescription opioids have the potential to be overused and cause dependence. Psychological factors such as stress, anxiety, depression, pain acceptance, pain catastrophising and alexithymia influence both the pain response and analgesic use, yet to date no studies have explored these variables in spinal pain patients. Therefore, the aim of this study is to assess the nature, prevalence and correlates of analgesic dependence among patients with acute or chronic spinal pain. Patients over the age of 18 attending outpatient services at the Royal Derby Hospital with complaints of either acute or chronic spinal pain and currently using analgesics to treat their pain completed the Current Opioid Misuse Measure, the Depression, Anxiety and Stress Scale-21, the Chronic Pain Acceptance Questionnaire-8, the Pain Catastrophising Scale, the Toronto Alexithymia Scale-20, and the Leeds Dependence Questionnaire, a measure of analgesic dependence. Preliminary findings from 52 patients (16 males and 36 females) with chronic spinal pain ranging from 23–88 years old, show that greater pain catastrophising is a significant predictor of analgesic dependence (Purpose and background
Methods and results
Low back pain affects 80% of the population at some point in their lives with 40% of cases attributed to intervertebral disc (IVD) degeneration. A number of potential regenerative approaches are under investigation worldwide, however their translation to clinic is currently hampered by an appropriate model for testing prior to clinical trials. Therefore, a more representative large animal model for IVD degeneration is needed to mimic human degeneration. Here we investigate a caprine IVD degeneration model in a loaded disc culture system which can mimic the native loading environment of the disc. Goat discs were excised and cultured in a bioreactor under diurnal, simulated-physiological loading (SPL) conditions, following 3 days pre load, IVDs were degenerated enzymatically for 2hrs and subsequently loaded for 10 days under physiological loading. A PBS injected group was used as controls. Disc deformation was continuously monitored and changes in disc height recovery quantified using stretched-exponential fitting. Histological staining was performed on caprine discs to assess extracellular matrix production and immunohistochemistry performed to determine expression of catabolic protein expression. The injection of collagenase and cABC induced mechanical behavior akin to that seen in human degeneration. A decrease in collagens and glycosaminoglycans (GAGs) was seen in enzyme injected discs, which was accompanied by increased cellular expression for degradative enzymes and catabolic cytokines.Purpose of study and background
Methods and Results
Complex interventions, such as exercise for LBP, often have many treatment targets. Matching a primary outcome to the target(s) of exercise interventions may provide greater standardized mean differences (SMDs) than using an unmatched primary outcome. We aimed to explore whether the conclusions of exercise trials for LBP might differ with i) improved matching of outcomes to treatment targets and ii) the use of composite outcome measures. We investigated i) matching in five trials (n=1033) that used an unmatched primary outcome but included some of their matched outcomes as secondary outcomes; ii) composite outcomes in four trials (n=864). The composite consisted of standardised averaged matched outcomes. All analyses replicated the primary outcome analysis, applied to the matched or composite outcome in each dataset. When not possible, SMDs were calculated for the primary and matched outcomes. i) Of five trials, three had greater SMDs and increased statistical significance with matched outcomes (pooled effect SMD 0.35 (95% CI 0.16, 0.54), p=0.0003) compared to an unmatched primary outcome (pooled effect SMD 0.13 (95% CI 0.04, 0.23) p=0.007). ii) Of four composite outcomes: two matched trials had greater SMDs and improved statistical precision in the primary outcome than the composite outcome; two unmatched trials had greater SMDs and improved statistical precision in the composite compared to the primary outcome.Background
Methods and Results
Modic changes (MC) is a form of intervertebral disc degeneration visible as subchondral and vertebral bone marrow changes on spine magnetic resonance (MR). Their etiology is not understood, but microbial infection may be involved for some subtypes. This study set out to test for an association between MC and gut microbiome in a population sample. Presence of MC was evaluated in lumbar MR images and gut microbiome assessed using 16S sequencing in TwinsUK dataset (N=309). Cases were identified by the presence of MC of any type, while controls were those without MC. Amplicon sequence variants (ASVs) have been obtained for 16S sequences followed by relative abundance calculation and centred log-ratio transformation. Linear mixed-effects models were applied to test for association between the ASVs at different taxon levels and MC adjusting for technical covariates and demographics.Objective
Methods
Healthcare for sciatica is usually ‘stepped’ with initial advice and analgesia, then physiotherapy, then more invasive interventions if symptoms continue. The SCOPiC trial tested a stratified care algorithm combining prognostic and clinical characteristics to allocate patients into one of three groups, with matched care pathways, and compared the effectiveness of stratified care (SC) with non-stratified, usual care (UC). Pragmatic two-parallel arm RCT with 476 adults recruited from 42 GP practices and randomised (1:1) to either SC or UC (238 per arm). In SC, participants in group 1 were offered up to 2 advice/treatment sessions with a physiotherapist, group 2 were offered up to 6 physiotherapy sessions, and group 3 was ‘fast-tracked’ to MRI and spinal specialist opinion. Primary outcome was time to first resolution of sciatica symptoms (6-point ordinal scale) collected via text messages. Secondary outcomes (4 and 12 months) included leg and back pain intensity, physical function, psychological status, time-off-work, satisfaction with care. Primary analysis was by intention to treat.Background and Purpose
Methods
Physical mechanisms underlying back pain impairment are poorly understood. Measuring movement features linked to back pain should help understand its causes and decide on best management. Previous kinematic studies have pointed to diverse features distinguishing back pain sufferers. However, the complexity of 3D kinematics means that it is difficult to choose, a priori, which variables or variable combinations are most important. This study set out to obtain a rich set of kinematic data from spinal regions and lower extremities during typical movement tasks, and analyse all of these variables simultaneously to obtain globally important distinguishing features. To this end, a novel distance metric between pairs of motion sequences was used to construct distance matrices. Analyses were carried out directly on these distance matrices. 20 controls (age: 28 ± 7.6, 10 female) and 20 chronic LBP subjects (age: 41 ± 10.7, 4 female) were recruited. Kinematic data were obtained whilst subjects stood from sitting (‘STS’), picking up (‘Picking’) and lowering (‘Lowering’) a 5kg box, and walking (right (‘WalkRight’) and left sides (‘WalkLeft’)). For each task, permutation tests for group differences were carried out, based on the pseudo-F statistic calculated from the distance matrices. A similar approach was used to identify local differences at time points and joints. Group mean motion sequences were compared using a custom OpenSim model. Significant differences were obtained for STS (pseudo-F=2.8, p=0.017), WalkRight (pseudo-F=3.27, p=0.008) and WalkLeft (pseudo-F=3.39, p=0.005).Purpose and Background
Methods and Results
Previous work has identified differential kinematics and muscle activity between non-specific chronic low back pain (LBP) subgroups (flexion pattern (FP) and active extension pattern) and healthy controls. However, it is unclear if differences in muscle activity are maintained on resolution of pain and/or if they contribute to pain recurrence. To investigate differences in trunk muscle activity between individuals with a history of flexion-related LBP (who are currently pain-free) and no-LBP controls during three functional activities.Background
Purpose
Acute lumbar radiculopathy is a very painful condition sometimes requiring admission for strong analgesia. To evaluate the efficacy of distal nerve root blocks as an outpatient procedure for immediate pain relief.Background
Purpose
A Virtual Spinal Clinic (VSC) was set-up at a regional spinal referral centre to see if patient care could be improved through early advice to provide timely management, early onward referral, improve patient satisfaction and minimise chronicity. The clinic was based on the successful virtual model used throughout the country within orthopaedic fracture clinics. VSC is a Consultant led multi-disciplinary (MDT) clinic run by Advanced Practitioners (AP). A 3-month trial of the VSC was completed bi-weekly. Patients diagnosed with conservatively managed spinal fractures were referred from the on-call service. A management plan was devised by a Consultant Spinal Surgeon and communicated to patients by the AP via a telephone-call consultation where clinical advice and management could be discussed.Purpose
Methods
The STarT Back approach comprises subgrouping of LBP patients according to risk of persistent LBP-related disability, and matches patients to appropriate treatments. In a clinical trial and implementation study, this stratified care approach was clinically and cost-effective compared to usual non-stratified care. However, the long-term cost- effectiveness is unknown, and could be established with decision modelling. A systematic review of model-based economic evaluations in LBP found shortcomings with existing models, including inadequate characterisation of the condition in health states and absence of long-term modelling. This study conceptualises the first decision model of this stratified care approach for LBP management, and assesses long-term cost-effectiveness. A cost-utility analysis from the NHS perspective compared stratified care with usual care, in patients consulting in primary care with non-specific LBP. A Markov state-transition model was constructed where long-term patient prognosis over ten years was dependent upon physical function achieved at twelve months. Consultation with experts helped define condition health states, inform the long-term modelling, and choice of sensitivity analyses.Background and Purpose
Methods
IVD degeneration is a major cause of Low back pain. We have previously reported an injectable hydrogel (NPgel), which induces differentiation of human MSCs to disc cells and integrates with NP tissue following injection MSCs were cultured in NP gel under 5% O2 in either: standard culture (DMEM, pH7.4); healthy disc (DMEM, pH7.1); degenerate disc (low glucose DMEM, pH6) or degenerate disc plus IL-1β. Following 4 weeks histological staining and immunohistochemical analysis investigated viability, ECM synthesis and matrix degrading enzyme expression. Here we have shown that viability and NP cell differentiation of MSCs incorporated within NPgel was mostly unaffected by treatment with conditions such as low glucose, low pH and the presence of cytokines, all regarded as key contributors to disc degeneration. In addition, the NPgel was shown to prevent MSCs from displaying a catabolic phenotype with low expression of degradative enzymes, highlighting the potential of NPgel to differentiate hMSCs and protect them from the degenerate disc microenvironment.Purpose of study and background
Methods and Results
Lower back pain (LBP) is one of the ten leading causes of disease burden globally, producing significant detrimental effects on physical and emotional wellbeing whilst having a substantial economic burden for society. There is an inverse relationship between socio-economic status and pain prevalence. The effectiveness of a locally run ‘Back to Fitness Programme’ (6-week education and exercise programme) in the most deprived local authority area in England was evaluated. Patients at Blackpool Hospitals NHS Trust over a 6-month timeframe were included. Initial data were collected from 49 patients (mean age 53.4 years, 67% female). The amount of final data collected varied per outcome measure due to a range of factors. Participants reported the programme had helped with their understanding of pain (n=16, 100%), ability to move around and function (n=15, 94%), and level of pain (n=14, 88%). Looking at Roland Morris Disability Questionnaire scores (n=17), 88% (n=15) of patients indicated a reduction (n=12, 71%) or no change (n=3, 18%) in perceived disability. The Pain Self Efficacy Questionnaire (n=18) showed that 78% (n=14) of participants perceived an increase in their average level of confidence to move despite pain. There was an overall improvement in understanding of pain reflected by Revised Neurophysiology of Pain Questionnaire scores (n=44): 89% (n=39) improved (n=36, 82%) or did not change (n=3, 7%). Regarding lumbar flexion post-programme (n=17), 77% (n=13) of participants demonstrated an improvement (n=9, 53%) or no change (n=4, 24%).A statement of the purposes of the study and background
A summary of the methods used and the results
The national back pain pathway sets out the gold standard pathway for patients with back and radicular pain. To improve implementation we needed to understand current practice and identify divergences from the pathway. 1) What patient is referred into the surgical clinic? 2) What treatments had they tried? 3) How many had spinal interventions. 4) Consider ways to improve the appropriateness of referrals.Background
Objectives
An understanding of the patterns of healthcare services used after MRI of the spine in general practice would provide information about how MRI scans are used in primary care. To describe the healthcare use of patients referred for lumbar MRI in general practice, and to investigate the association between specific patient characteristics, back pain characteristics and MRI abnormalities with subsequent specialist consultation.Background
Aim
A 2011 Cochrane review concluded that spinal manipulative therapy (SMT) is no better than other interventions for reducing pain and improving function in chronic low back pain (CLBP). Using individual participant data (IPD) from trials has advantages, among others: a more precise estimate of the effect and the potential to identify moderators. Our objective was to assess the effect of SMT in adults with CLBP and to identify relevant moderators. All trials from the 2011 Cochrane review were included in this IPD. We updated the search (April 2016) IPD from eligible studies was requested. Primary outcomes were pain intensity (VAS/NRS) and back-specific function (RMDQ). Risk of bias was assessed. For the treatment effect, an one-stage approach (mixed model technique, intention-to-treat principle) was used; a second-stage approach was conducted as confirmation. For the moderator analyses, one-stage approach was conducted for 19 variables.Purpose of the study and background
Methods
Medication prescribing patterns for patients with neuropathic low back-related leg pain (LBLP) in primary care are unknown. To estimate the proportion of patients prescribed pain medications, describe baseline characteristics of patients prescribed neuropathic pain (NP) medication and estimate the proportion of LBLP patients with refractory NP.Background
Purpose
The Fear Avoidance Model is used to explain why some patients with acute low back pain develop chronic low back pain (CLBP). Cognitive behavioural therapy (CBT) targeting dysfunctional behavioural cognitions (pain catastrophizing and fear of movement) is recommended. Purpose: to investigate whether a two-week CBT-based pain management program results in improvement in dysfunctional behavioural cognitions and whether these improved cognitions improve functional outcomes. Cohort study including 524 consecutive CLBP-patients. Main outcome: functioning (ODI). Secondary outcomes: pain severity (NRS), pain catastrophizing (PCS), fear of movement (TSK). Assessments: pre- and post-treatment, 1 and 12-months follow-up (FU). Improvement over time was analysed with repeated measures ANOVA. Path analyses were used to examine the influence of pain catastrophizing and fear of movement on functional disability and pain severity. Multiple imputation was used to complete missing data. Participants with incomplete data (12.8%) did not differ from those with complete data (n= 457). 59% were females, mean age 46 (± 9.5) years, mean CLBP-duration 12 (± 10.8) years. All outcomes significantly improved at post-treatment and a slight significant improvement between post-treatment and 12 months FU was observed. Path analyses showed a direct effect for catastrophizing on post-treatment functioning and an indirect effect for catastrophizing through fear of movement on post-treatment functioning. Comparable results with pain severity as outcome.Background and purpose
Methods and Results
A cornerstone in treating low back pain (LBP) is the provision of information to patients, and the internet is increasingly being used as a source of health information delivery. However, the effect of and satisfaction with online information have been questioned. To develop a multi-item instrument to measure an index score of satisfaction with online information for patients with LBP.Background
Purpose
To systematically review the literature and anatomical atlases on LM morphology. Relevant studies were searched in PubMed (Medline) and Science Direct. Anatomical atlases were retrieved from multiple university libraries and online. Included atlases and studies were assessed at five items: visuals present(y/n), quality of visuals(in-/sufficient), labelling of multifidus (y/n), clear description of region of interest(y/n), description of plane has been described(y/n). This risk of bias assessment tool was developed to assess the quality of description of anatomy, since existing risk of bias tables have only been developed to assess the methodology of studies.Aim
Methods
Degeneration of the cervical spine can lead to neurological symptoms that require surgical intervention. Often, an anterior cervical discectomy (ACD) with fusion is performed with interposition of a cage. However, a cage substantially increases health care costs. The polymer polymethylmethacrylate (PMMA) is an alternative to cages, associated with lower costs. The reported high-occurrence of non-fusion with PMMA is often seen as a drawback, but evidence for a correlation between radiological fusion and clinical outcome is absent. To investigate if the lower rate of fusion with PMMA has negative effects on long-term clinical outcome, we assessed the clinical results of ACD with PMMA as a intervertebral spacer with a 5–10 year follow-up. A retrospective cohort study among all patients who underwent a mono-level ACD with PMMA for degenerative cervical disease, between 2007–2012, was performed. Patients filled out an online questionnaire, developed to assess clinical long-term outcome, complications and re-operation rates. The primary outcome measure was the Neck Disability Index (NDI), secondary outcome measures were re-operation and complication rates.Introduction
Methods
The vertebral endplate (VEP) is characterised as a bilayer of cartilage and bone, acting as a boundary between the disc and the vertebra. The disc being the largest avascular tissue in the body, relies primarily on the nutritional pathways from the vascular network in the adjacent VEP. Disruption of this nutrient supply has been identified as a major contributor to disc degeneration, yet the 3D topology of the network is poorly understood. The aim of this work is the characterisation of this vascular network to further understand the physiology of the vascular network and the correlation between disc degeneration and nutrient supply. Caudal and cranial VEP sections were sampled from lumbar ovine spines and imaged using high-resolution micro-computed tomography (micro-CT) at 4.92 µm pixel size. The diameter, length, orientation and depth from the VEP surface were measured for individual canals using 3D canal centreline models using ScanIP. The results showed higher concentration of canals in the central regions of the VEP and in caudal VEP to the disc. Large transverse canals were identified running parallel to the VEP surface connected to both the disc and the vertebra, and depth-dependence of the length and diameter of the canals was recorded.Aim of Study and Background
Methods and Results
Clinical decision support systems (CDSS) can support clinicians in selecting appropriate treatments for patients. The objective of this study was to examine if triaging patients with LBP to the most optimal treatment can be improved by using a data-driven approach with the help of machine learning as base of such a CDSS. A clinical database of the Groningen Spine Center containing patient-reported data from 1546 patients with LBP was used. From this dataset, a training dataset with 354 features was labeled on eight different treatments actually received by these patients. With this dataset, models were trained. A test dataset with 50 cases judged on treatments by 4 experts in LBP triage was used to test these models with data not used to train the models. Prediction accuracy and average area under curve (AUC) were used as performance measures for the models.Aims
Methods
Chronic low back pain (LBP) is globally recognised as a leading cause of disability, with a global point-prevalence of 540 million people experiencing ‘activity-limiting’ LBP. A lack of muscle endurance is common in people with LBP, however the mechanisms underlying reduced endurance remain unclear. This study utilised high-density EMG (HDEMG) to evaluate differences in the spatial distribution and redistribution of lumbar erector spinae (ES) activity during an endurance task. Thirteen control (Age:26.46±5.0, 7 Males) and 13 LBP participants (Age:27.39±9.7, 6 Males) were recruited and HDEMG signals were detected from ES unilaterally using a 13×5 electrode grid adhered 2cm lateral to the L5 spinous process. Participants were asked to complete an isometric endurance task until failure (>10° trunk deviation) with muscle activity simultaneously recorded. The activity was computed to form a map of the EMG amplitude distribution and the position of the centre of activity (centroid) was monitored throughout the task.Introduction
Methods
Musculoskeletal disorders including as back and neck pain are leading causes of work disability. Effective interventions exist (i.e. functional restoration, multidisciplinary biopsychosocial rehabilitation, workplace-based interventions, etc.), but it is difficult to select the optimal intervention for specific patients. The Work Assessment Triage Tool (WATT) is a clinical decision support tool developed using machine learning to help select interventions. The WATT algorithm categorizes patients based on individual, occupational, and clinical characteristics according to likelihood of successful return-to-work following rehabilitation. Internal validation showed acceptable classification accuracy, but WATT has not been tested beyond the original development sample. Our purpose was to externally validate the WATT. A population-based cohort design was used, with administrative and clinical data extracted from a Canadian provincial compensation database. Data were available on workers being considered for rehabilitation between January 2013 and December 2016. Data was obtained on patient characteristics (ie. age, sex, education level), clinical factors (ie. diagnosis, part of body affected, pain and disability ratings), occupational factors (ie. occupation, employment status, modified work availability), type of rehabilitation program undertaken, and return-to-work outcomes (receipt of wage replacement benefits 30 days after assessment). Analysis included classification accuracy statistics of WATT recommendations for selecting interventions that lead to successful RTW outcomes. The sample included 5296 workers of which 33% had spinal conditions. Sensitivity of the WATT was 0.35 while specificity was 0.83. Overall accuracy was 73%.Purposes and Background
Methods and Results
Having found a significant limitation of neural movement (66.6%) during SLR performed on the symptomatic side in patients with sub-acute lumbar intervertebral disc herniation (LIDH), we followed up on the same patients over 1.5 years to ascertain if changes in cord excursion accompany changes in clinical symptoms. 14 patients, who originally had sciatic symptoms due to subacute LIDH, were re-assessed both clinically and radiologically with a 1.5T magnetic resonance (MR) scanner. Displacement of the conus medullaris during the unilateral and bilateral SLR was quantified reliably with a randomized procedure and compared between maneuvers and with data from baseline. Multivariate regression models and backward variable selection method were employed to identify variables more strongly associated with decrease in low back pain and radicular symptoms.Purposes And Background
Methods
Low back pain (LBP) is a common debilitating condition with great socioeconomic impact. Identifying individuals at risk of LBP is challenging. We have shown IgG N-glycans are associated with LBP. Herewith, we used polygenic risk scores (PRS) from IgG-glycome to test predictability for LBP. Clusters of IgG-glycans were identified using weighted correlation network approach in TwinsUK (n = 4246). Genome-wide association studies were carried out for the clusters and top associated SNPs (p<5e-8) were extracted. Weighted PRS was calculated as the sum of the number of copies of effect allele from GWAS multiplied by their effect size using the UK Biobank data (n = 350000). The predictive capacity of the PRS for back pain in UK Biobank was estimated using logistic regression.Objective
Methods
Analgesic drugs are often prescribed to patients with low back pain (LBP). Recommendations for non-invasive pharmacological management of LBP from recent clinical practice guidelines were compared with each other and with the best available evidence on drug efficacy. Guideline recommendations concerning opioids, non-steroidal anti-inflammatory drugs (NSAIDs), paracetamol, antidepressants, anticonvulsants and muscle relaxants from national primary care guidelines published within the last 3 years were included in this review. For each pharmacotherapy, the most recent systematic review was included as the best available evidence on drug efficacy and common adverse effects were summarized.Introduction
Methods
When talking to patients about pain, it has been shown that practitioners can positively or negatively influence health beliefs and treatment outcomes. Multidisciplinary physical and psychological interventions have demonstrated better outcomes for patients with long-term pain. Acceptance and Commitment Therapy (ACT) is a form of ‘third wave’ Cognitive Behavioural Therapy (CBT) that has been shown to promote resilience and wellbeing. A qualitative auto-ethnographic case study design was used to explore the communication processes and therapeutic outcomes associated with developing an innovative course integrating ACT interventions with osteopathic treatment, delivered by a single practitioner. Six individual consultations with four patients were audio-recorded, transcribed verbatim and coded. Linguistic Ethnography was used to identify pain discourses and analyse links with clinical decisions and patient responses. Transcript extracts were analysed at three levels; micro-level Conversation Analysis of communication processes; Interactional Sociolinguistic Analysis of changes in patient-practitioner roles; and macro-level Discourse Analysis of the wider biomedical and biopsychosocial context.Purpose and background of the study
Methods
Back and lower limb injuries are prevalent in athletes who perform novel weight-lifting techniques with inappropriate kinematics. Visual-auditory instructions and knowledge of performance (KP) verbal instructions are utilised to help novices execute novel skills. Effectiveness of these methods on executing appropriate front-squat lifting kinematics is limited. Aim: to investigate the effects of visual-auditory instructions compared to KP verbal instructions on front-squat kinematics at sticking point in novice lifters, with improvement determined by proximity to the kinematics of an expert lifter at sticking point when performing optimal front-squat lift. Twenty-four novices were randomised into two groups and performed front-squat lift. The novices in visual-auditory group (n = 12, age = 24.33 ± 2.93 years) received videoaudio instructions, verbal group (n = 12, Age= 22.66 ± 2.34 years) received KP verbal instructions. MATLAB software measured kinematic lumbar angles, Kinovea software measured hip, knee, ankle angles at sticking point of front-squat. Data were collected from video recordings of novices and an expert pre-and post-instructions in one session and expert data were used as reference values of proximity for both groups.Purpose & Background
Methods
Information about low back pain (LBP) and help to support patients' self-management are recommended in the majority of guidelines for LBP management. However, the delivery of patient information and advice can be time consuming, and with short available consultation times for general practitioners (GPs), new methods to support the delivery of sufficient patient information is called for. To identify general practitioners' perspectives on recommending online information to patients with LBP.Background
Purpose
An increasing number of clinical studies involving a range of chronic pain conditions report widespread mechanical pressure pain hypersensitivity, which is commonly interpreted as resulting from central sensitization (CS). Secondary hyperalgesia (increased pinprick sensitivity surrounding the site of injury) is considered to be a manifestation of central sensitization. However, it has not been rigorously tested whether central sensitization induced by peripheral nociceptive input, involves widespread mechanical pressure pain hypersensitivity. The aim of this study was to assess whether high frequency electrical stimulation (HFS), which induces a robust secondary hyperalgesia, also induces a widespread decrease of pain pressure thresholds (PPTs). We measured PPTs bilaterally on the temples (temporalis muscles), on the legs (tibialis anterior muscles) and on the ventral forearm (flexor carpi radialis muscles) before, 20 min after, and 45 min after applying HFS on the ventral forearm of sixteen healthy young volunteers. To evaluate the presence of secondary hyperalgesia, mechanical pin-prick sensitivity was assessed on the skin surrounding the site where HFS was applied and also on the contralateral arm. HFS induced a significant increase in mechanical pinprick sensitivity on the HFS-treated arm. However, HFS did not decrease PPTs either in the area of increased pinprick sensitivity nor at more distant sites.Purposes of the study and background
Summary of the methods and results
The intervertebral disc (IVD) is a highly hydrated and hyperosmotic tissue, water and salt content fluctuate daily due to mechanical loading. Resident IVD cells must adapt to this ever-changing osmotic environment, to maintain normal behaviour. However, during IVD degeneration the disc becomes permanently dehydrated and cells can no longer perform their correct function. Here, we investigated how human nucleus pulposus (NP) cells respond to altered osmolality with regards to cell size and the rate of water permeability, along with the potential involvement of aquaporins (AQPs) and transient receptor potential vanilloid (TRPV) membrane channels. Water permeability of NP cells exposed to altered osmolality (225–525mOsm/kg) in the presence or absence of AQP and TRPV channel inhibitors was investigated with the cell-permeable calcein-AM fluorescent dye, and cell size determined using microscopy and flow cytometry.Introduction
Methods
There is lacking evidence about the prognostic role of anxiety as prognostic in acute low back pain patients. The objective of this study was to determine whether patients with acute low back pain (ALBP) are at risk to develop chronic low back pain (CLBP) and pain-related disability after 12 weeks due to high anxiety levels. An observational multi-centre study was conducted in primary physiotherapy care with measurements at baseline and at 12 weeks including known prognostic factors and psychological candidate predictors for CLBP. Two hundred and four participants completed both assessments of which 51 and 54 were classified as having less than 50% decrease in pain and pain-related disability, respectively. For pain, the final model contained higher pain intensity, longer pain duration, depression symptoms, and state anxiety with explained variance 0.30, sensitivity 0.74, specificity 0.82, Likelihood Ratio 4.1 (95% CI 2.0 to 6.1) and Area Under the Curve 0.78 (95% CI 0.70 to 0.85). For pain-related disability, trait anxiety, depression symptoms, and state anxiety contributed independently to the prediction with the model's explained variance of 0.19, sensitivity 0.78, specificity 0.78, Likelihood Ratio 3.0 (95% CI 2.0 to 4.5), and Area Under the Curve 0.73 (95% CI 0.65 to 0.81).Purpose and background
Methods and results
Exercise is a complex intervention, and often has more than one treatment target. Results from randomised controlled trials (RCTs) of exercise interventions for chronic low back pain (CLBP) typically show small to moderate effect sizes, but these may differ where outcomes better reflect the targets of interventions. This review aimed to describe what treatment targets, outcome domains and primary outcome measures are used in exercise RCTs, and examined how well the selected outcome domains match the treatment targets used in each RCT. A computer-aided literature search was performed in eight databases, from inception to August 2018. Inclusion criteria: RCTs in CLBP, exercise compared to a non-exercise arm, sample size >60 per arm. Title and abstract review, subsequent full text review, data extraction and risk of bias assessment were independently undertaken by pairs of reviewers. Of 18251 initially identified titles and abstracts, 23 trials were included in the review. 30 treatment targets were extracted, and 6 primary outcome domains identified. A logic model of the treatment targets and outcomes demonstrated diverse relationships. Only 5 RCTs matched their primary outcome domain to the identified treatment targets, 12 used primary outcomes that did not match the reported treatment targets, and 6 were partially matched.Background
Methods and Results
To develop a clinical core set of outcome measures that is accepted for relevance, feasibility and validity by stakeholders and useful for a) interaction between patient and professional, b) internal quality improvement, and c) external transparency in patients with NSLBP in primary care physical therapy. We used a consensus-driven modified RAND-UCLA Delphi technique. We conducted seven separate steps with panellists (physical therapists, patient representatives, health insurers) to select accepted outcomes. These seven steps consisted of a literature search, two online surveys, patient interviews, an experts meeting, a consensus meeting and final approval of an advisory board. Results of previous steps were discussed during the consensus meeting, and then panellists voted for inclusion per measure. The final core set was rated on relevance and feasibility on a 9-point Likert scale, when the median was ≥7 the core set was accepted.Aim
Method
The PACE trial was the first randomized controlled trial (RCT) investigating the efficacy of paracetamol in acute low back pain. Non-compliance to study medication was considered to be a limitation of this RCT. In contrast to conventional statistical methods, complier average causal effects (CACE) analysis may provide unbiased estimates of the effects for participants compliant to paracetamol. Intention to treat (ITT), as-treated, propensity weighted CACE and joint modeling CACE estimates were calculated for pain intensity, disability, global perceived effect and function at two weeks of follow up with compliance defined as an average of at least four tablets per day during the first two weeks of the trial. For pain intensity, exploratory analyses were conducted using additional time points and definitions of compliance.Introduction
Methods
