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Orthopaedic Proceedings
Vol. 104-B, Issue SUPP_9 | Pages 12 - 12
1 Oct 2022
Mandani M Reagon C Hemming R Sparkes V
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Purpose and Background. Patients’ engagement with self-management strategies (SMS) is key when managing low back pain (LBP) and relies on appropriate information being delivered by the treating Clinician. However, patients have differing coping mechanisms which may affect success with SMS. This study aimed to determine Patient and Physiotherapist's perceptions of coping responses and SMS in patients with LBP. Methods. Patient completed a Pain Coping strategies questionnaire, before and after LBP treatment. Semi-structured interviews gathered data from of 10 patients (6 males; and 6 physiotherapists. Questionnaire data was described descriptively, and qualitative data was transcribed/analysed thematically. Results. 5 patients were categorized as ‘active copers’ and 5 as ‘passive copers’ before treatment. SMS success appeared to be impacted by patient coping strategies they adopted. Spiritual religious coping strategies linked to cultural beliefs was a common strategy for all patients. However, the active copers were more likely to engage with active strategies compared to passive copers. All patients felt they had not received full education/details about the home exercises. One patient became an ‘active coper’ following treatment demonstrating high self-confidence to self-manage pain and accepted exercises as a lifestyle. Physiotherapists did not use a valid method for screening purposes for coping, although they referred to ascertaining this verbally and they did tailor exercises differently for passive and active copers. Conclusion. Screening for individual coping strategies would enhance targeting treatments and all patients would benefit from full exercise programmes for self- management and pain self-efficacy approaches to change patients ‘behaviour and enhance patients’ self-confidence. Conflicts of interest: No conflicts of interest. Sources of funding: The study is sponsored by Kuwait Government


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 2 - 2
7 Aug 2024
Hebberd B Rooke C Burton K
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Background. A local authority approached us, for a cost-beneficial solution to their increasing low back pain referrals. We proposed developing a student-led clinic – an intervention delivered by students but supervised by clinicians. We then conducted scoping reviews on student-led clinics in the management of health conditions and on the self-management of back pain. The findings suggested that student-led self-management interventions for low back health should be feasible. The next step was to co-construct the intervention with key stakeholders. Co-Construction. A hybrid of Action Research and Design Science methodology was used to co-construct the intervention with five key stakeholder groups (council staff, managers and human resources, employee healthcare, students, and lecturers). Three rounds of focus groups explored the ‘problem’, the possible solutions, the process, and the content. Themes were taken from each of these focus groups and the similarities and differences were analysed. This analysis and subsequent synthesis with the evidence base created potential intervention models, which were discussed and refined with the stakeholder groups. Intervention. The proposed intervention is focused on providing evidence informed biopsychosocial support for work-relevant back pain, based on identifying obstacles and solutions to improve coping with back health at work. An onboarding workshop challenges positively their thinking around back pain and work. This is followed by up to three 1:1 sessions that support the individual to identify work-relevant back health goals and agree a plan to achieve them using techniques to facilitate behaviour change. Conclusion. The intervention is evidence informed and aims to address the prioritised needs of the stakeholders. Conflicts of interest. No conflicts of interest. Sources of funding. National Health Service Education


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_2 | Pages 4 - 4
1 Feb 2018
Abbey H Nanke L
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Background. Chronic pain is a complex condition that demonstrates better outcomes in multidisciplinary rehabilitation, typically delivered to groups of patients by tertiary healthcare teams. An inter-disciplinary pain management course for individual patients was developed to increase the scope of physical therapists working in primary care by integrating osteopathic manual therapy with psychological interventions from Acceptance and Commitment Therapy (ACT), a form of ‘3rd wave’ Cognitive Behaviour Therapy. Method and Results. A single cohort study with pre-course (n=180) and post-course (n=79) self-report measures (44% response rate) evaluated six week interventions which combined individual manual therapy with self-management, delivered by teams of qualified and student osteopaths. Data included: quality of life (European Quality of Life Questionnaire); pain, mood and coping (Bournemouth Questionnaire); psychological flexibility (Revised Acceptance and Action Questionnaire); and mindfulness (Freiburg Mindfulness Inventory). Participants were predominantly female (68%), unemployed (59%), with an average age of 49 and pain duration of more than 12 months (86%). Commonly reported symptoms were low back pain (82%), neck pain (60%) and multiple sites (86%). At six months, there were statistically significant improvements in all four outcome measures (p<0.0005), with promising effect sizes in quality of life and pain coping (r=0.52) which appeared to be mediated by changes in psychological flexibility. Conclusions. This innovative, integrated, patient-centred chronic pain management course demonstrated promising outcomes when delivered by osteopaths with varying experience. Randomised clinical trials are now needed to assess outcomes in comparison with standard care, and optimal ways of training physical therapists to deliver effective psychological interventions. Conflicts of interest: No conflicts of interest. Sources of funding: A Department of Health ‘Innovation, Excellence and Strategic Development’ (IESD) grant for the Voluntary Sector Investment Programme (AIMS Ref: 2527190; ISRCTN: 04892266). The results of this study are being submitted for publication in the International Journal of Osteopathic Medicine and will be presented at the COME Collaboration Osteopathic Conference in Barcelona on September 30th 2017 and at the Therapy Expo 2017 at the NEC in Birmingham on November 22nd 2017


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 52 - 52
1 Sep 2019
Afzali T Lauridsen H Thomsen J Hartvigsen J Jensen M Riis A
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Background. 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. Purpose. To develop a multi-item instrument to measure an index score of satisfaction with online information for patients with LBP. Methods. The conceptualization of this patient reported outcome is modelled on the assumption of a formative model. The first draft of the questionnaire was developed based on a previous published interview study of 15 patients and evaluated for face validity by seven experts. The second draft of the questionnaire was pilot-tested in 20 patients to optimize content validity. Patients were recruited from a rehabilitation center and from social media. Results. An eight-item questionnaire was developed after assessing content and face validity. The items were related to design, readability, customization, credibility, usability, and coping. A labelled categorical scale was used for response options. Each item is scored from 0–3, where 0 indicates not at all satisfied, 1 indicates little satisfaction, 2 indicates some satisfaction, and 3 indicates very satisfied giving an overall index score between 0 and 24 points. Conclusion. An eight-item questionnaire measuring satisfaction with an index score from 0–24 points has been developed. The OPSI questionnaire is now being tested for construct validity, reproducibility and interpretation on 150 patients with LBP. No conflicts of interest. Sources of funding: Funded by the Novo Nordic Foundation (NNF17OC0024422)


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 36 - 36
1 Sep 2019
Abbey H
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Purpose and background of the study. 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. Methods. 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. Results. Two distinctive forms of discourse were identified. In predominantly ‘mechanistic’ communication, the ‘expert’ practitioner role was focused on fixing ‘broken’ parts and relieving pain. In ‘facilitative’ discourses, the ‘collaborative’ practitioner focused on promoting patients’ body awareness and active coping. Challenges included learning how to shift between discourses, which required mindfulness and willingness to tolerate uncertainty. Conclusion. This new inter-disciplinary approach enabled an osteopath to re-frame pain discourses to promote patient agency and resilience. Findings were subsequently used to design the OsteoMAP study (Osteopathy, Mindfulness and Acceptance-based Programme) to test outcomes with practitioners in other clinical settings. No conflicts of interest. No funding obtained


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_9 | Pages 28 - 28
1 Sep 2019
Soer R Buwalda N Mireau J Coppes M Wolff A Preuper HS Reneman M
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Aims. The aims of this study were to investigate whether 1) multispecialist tertiary intervention for complex spinal pain lead to reductions in spine-related healthcare costs and 2) baseline characteristics are related to health care consuming costs. Patients and methods. A cost study in a natural prospective cohort was carried out to investigate healthcare data of patients admitted to the Groningen Spine Center (GSC) ranging from two years prior to referral until two year after discharge. GSC intervention consisted of a multi-professional and -specialist based diagnosis and treatment. Patients (18 and 80 years) were included, suffering from specific as well as multifactorial spinal pain. Clinical data was merged with Health Care Insurance data and included questionnaires on demographics, work, pain, disability, quality of life and psychosocial functioning. Univariable (paired sample t-tests) and multivariable analyses (pooled OLS Regression and fixed effects models) were carried out. Results. Included were 997 patients (mean age 52 years) filing a total of 700.533 health care declarations. The findings suggest that the intervention had a significant negative effect on spine-related healthcare costs (predominantly on medical specialist and allied care). Reduction in healthcare costs after treatment was predicted by lower age, lower duration, lower BMI, high education, high job satisfaction, low physical workload, high mental health, better coping, lower pain intensity, high EQ-5D score and low financial worries at baseline (all p<0.01). Conclusion. This observational study showed that spine-related healthcare consuming can be effectively reduced after tertiary multi-specialist intervention for patients with complex spinal pain. The results are robust when controlling for background characteristics and are unlikely to be driven by regression to the mean. No conflicts of interest. No funding obtained


The Bone & Joint Journal
Vol. 97-B, Issue 11 | Pages 1546 - 1554
1 Nov 2015
Kim HJ Park JW Chang BS Lee CK Yeom JS

Pain catastrophising is an adverse coping mechanism, involving an exaggerated response to anticipated or actual pain. The purpose of this study was to investigate the influence of pain ‘catastrophising’, as measured using the pain catastrophising scale (PCS), on treatment outcomes after surgery for lumbar spinal stenosis (LSS). A total of 138 patients (47 men and 91 women, mean age 65.9; 45 to 78) were assigned to low (PCS score < 25, n = 68) and high (PCS score ≥ 25, n = 70) PCS groups. The primary outcome measure was the Oswestry Disability Index (ODI) 12 months after surgery. Secondary outcome measures included the ODI and visual analogue scale (VAS) for back and leg pain, which were recorded at each assessment conducted during the 12-month follow-up period. The overall changes in the ODI and VAS for back and leg pain over a 12-month period were significantly different between the groups (ODI, p < 0.001; VAS for back pain, p < 0.001; VAS for leg pain, p = 0.040). The ODI and VAS for back and leg pain significantly decreased over time after surgery in both groups (p < 0.001 for all three variables). The patterns of change in the ODI and VAS for back pain during the follow-up period significantly differed between the two groups, suggesting that the PCS group is a potential treatment moderator. However, there was no difference in the ODI and VAS for back and leg pain between the low and high PCS groups 12 months after surgery. . In terms of minimum clinically important differences in ODI scores (12.8), 22 patients (40.7%) had an unsatisfactory surgical outcome in the low PCS group and 16 (32.6%) in the high PCS group. There was no statistically significant difference between the two groups (p = 0.539). . Pre-operative catastrophising did not always result in a poor outcome 12 months after surgery, which indicates that this could moderate the efficacy of surgery for LSS. Cite this article: Bone Joint J 2015;97-B:1546–54


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_10 | Pages 2 - 2
1 May 2017
Green P Murray M Coxon A Ryan C Greenough C
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Background. The BACK To Health programme is part of the wider North of England back pain and radicular pain pathway. The purpose of this programme is to provide a CPPP approach based on the NICE guidelines CG88 for those with back pain that has not responded to early management and simpler therapies. The purpose of this study is to present preliminary results of this programme. Method. Referral onto the programme occurred through triage and treat practitioners or consultant clinics. A total of 44 patients were referred, with 31 attending the programme. The programme was delivered as a 3 week residential programme, with patients present 9am-5pm Monday to Thursday. A MDT provided an intense programme consisting of education, physical exercise, practical coping strategies and group discussion. The work has received ethical approval from the School of Health and Social Care Research Ethics and Governance committee at Teesside University. Results. Significant improvements (p<0.05) were seen in the, EQ-5D-5L, GAD-7, PHQ9, pain VAS scores (respective mean improvement 0.170, 5.2, 5.5 and 1.25). Significant improvement (p<0.05) was seen in ODI scores but with a mean improvement of 7% clinical significance was not achieved. Self-management confidence by the end averaged 6/10. Conclusion. The majority of patients showed good response to the BACK To Health Programme. After undergoing 3 weeks of education and exercise using cognitive behavioural principles early improvements were seen in GAD-7, PHQ9, Pain VAS and EQ/5D/5L. At 6 months and 1 year we will follow these patients up to continually assess progress. No conflicts of interest. No funding obtained


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_4 | Pages 35 - 35
1 Feb 2014
Sheeran L Hemming R Sparkes V
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Background. CB-CFT targeting specific pain provoking posture/movements in NSCLBP patients was shown more beneficial than current best practice. Resources for such interventions are substantial and so modifications for today's NHS are warranted. This study investigated feasibility and effect of CB-CFT delivered in a group setting (CB-CFT/G). Methods. Twenty three patients referred to Physiotherapy with NSCLBP undertook (i) 6 week CB-CFT/G(n=13) or (ii) current best practice (C)(n=10). Outcomes: Oswestry Disability Questionnaire (ODQ), pain (VAS), fear avoidance (Tampa Scale of Kinaesiophobia;TSK), physical activity (International Physical Activity Questionnaire;IPAQ), distress&risk assessment (DRAM), StarTBack and satisfaction. Unpaired t-tests assessed between-group difference in mean change of each outcome (p<0.05). Results. With no between-group baseline differences, there was a statistically significant difference between the groups mean change (SD) in ODQ [CB-CFT/G=14.9(8.0), C=5.2(12.4) p=.034], VAS [CB-CFT/G = 2.1(1.5), C=0.7(1.8) p=.045], TSK [CB-CFT/G=12.4(7.2), C=4.1(2.6) p=.002], IPAQ [CB-CFT/G =1855min(1085), C=19min(1672) p=.000] and StarTBack [CB-CFT/G =2.5(1.6), C=0.2(2.2) p=.009]. DRAM also showed greater improvements in CB-CFT/G [8.3(4.7) compared to C [-0.3(15.3) but this was not significant. CB-CFT/G group element was perceived as highly beneficial allowing patients to learn from each other, enhancing awareness and coping. Conclusion. CB-CFT/G is feasible, brings benefits to NSCLBP patients and meets with high levels of satisfaction. Long term effects are currently being evaluated


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_I | Pages 31 - 31
1 Jan 2012
Myburgh C Roessler K Holsgaard-Larsen A Hartvigsen J
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Chronic pain and psychosocial distress are generally thought to be associated in chronic musculoskeletal disorders such as non-specific neck pain. However, it is unclear whether a raised level of anxiety is necessarily a feature of longstanding, intense pain amongst patient and general population sub-groups. Post-hoc analysis. In a cohort of 70 self-selected female, non-specific neck pain sufferers, we observed relatively high levels of self-reported pain of 4.46 (measured on the 11 point numerical pain rating scale (NRS-101)) and a longstanding duration of symptoms (156 days/year). However, the mean anxiety scores observed (5.49), fell well below the clinically relevant threshold of 21 required by the Beck Anxiety Inventory. The cohort was stratified to further distinguish individuals with higher pain intensity (NRS>6) and longer symptom duration (>90 days). Although a highly statistically significant difference (p=0.000) was subsequently observed with respect to pain intensity, in the resulting sub-groups, none such a difference was noted with respect to anxiety levels. Our results indicate that chronic, intense pain and anxiety do not always appear to be related. Explanations for these findings may include that anxiety is not triggered in socially functional individuals, that individual coping strategies have come into play or in some instances that a psychological disorder like alexithymia could be a confounder. More studies are needed to clarify the specific role of anxiety in chronic non-specific musculoskeletal pain before general evidence-driven clinical extrapolations can be made


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_I | Pages 24 - 24
1 Jan 2012
Briggs A Jordan J Buchbinder R Straker L Burnett A O'Sullivan P Metcalf D Chua J Osborne R
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Purpose. Health literacy, the ability to seek, understand and utilise health information, is important for health and health-related decisions. Suboptimal health literacy is associated with poorer health outcomes in many chronic conditions although this has not been studied in chronic low back pain (CLBP). This study explored health literacy in a community cohort with and without CLBP. Methods and results. 117 adults, comprising 61 with no history of CLBP and 56 with CLBP (28 with low and high disability, respectively, determined by a median split in Oswestry scores) participated. Using a mixed methods approach, data were collected on pain severity, LBP-related disability, fear avoidance, LBP beliefs, pain catastrophizing and health literacy was measured using the Short-form Test of Functional Health Literacy in Adults (S-TOFHLA). In-depth interviews were undertaken with 36 CLBP participants to explore beliefs about LBP and experiences in seeking, understanding and using LBP information. LBP-related beliefs and behaviours, rather than pain intensity and health literacy skills, were associated with disability related to LBP. Individuals with CLBP-high disability had poorer back pain beliefs and increased fear avoidance behaviours relating to physical activity. Although S-TOFHLA scores suggested adequate health literacy across all participants and these were not related to LBP beliefs and attitudes, interviews revealed that individuals with CLBP-high disability adopted a more passive coping style and had a patho-anatomical view of their disorder compared to individuals with CLBP-low disability. Conclusion. While participants with CLBP have adequate S-TOFHLA scores, qualitative data revealed barriers in seeking, understanding and utilising LBP information


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_I | Pages 9 - 9
1 Jan 2012
Kongsted A Johannesen E Leboeuf-Yde C
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Background. The ‘Subgroups for Targeted Treatment back tool’ (STarT) is supposed to divide patients with low back pain (LBP) into three groups with different risks of non-recovery. The objectives of this study were 1) to investigate whether these groups exist among Danish chiropractor patients, and if so 2) to test if the groups differ on psychological profile as measured by the Major Depression Inventory (MDI), the Coping Strategies Questionnaire (CSQ), and the Fear-Avoidance-Beliefs Questionnaire (FABQ). Methods. Questionnaires were handed out to LBP patients aged 18 – 65 years in 19 chiropractor clinics during a 4 weeks period. Patients were anonymous and returned the completed forms in a sealed envelope. Associations between the risk groups and MDI, CSQ, and FABQ were tested by means of linear regression. Results. The study population consisted of 475 patients: 59 % in the ‘low risk subgroup’, 29 % in the ‘medium risk subgroup’ and 11 % in the ‘high risk subgroup’. MDI median scores for the groups were 6 (95 % CI 5 – 7), 14 (95 % CI 13 – 16), and 21 (95 % CI 17 – 25). The corresponding values for CSQ-catastrophizing were 6 (95 % CI 5 – 7), 10 (95 % CI 8 – 12), and 17 (95 % CI 15 – 18), and for FABQ 22 (95 % 19 – 24), 30 (95 % 27 – 35), and 53 (95 % 38 – 65) in the respective groups. Conclusion. Chiropractor patients with LBP could be subdivided into predefined groups by the STarT tool. The subgroups differed significantly on psychological profiles. Whether the STarT-subgroups have implications in relation to choice of treatment or prognosis has still to be investigated


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_X | Pages 2 - 2
1 Apr 2012
Kelly S Severn A Downes J Findlay G Nurmikko T
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Previous research has suggested that when subjected to painful lumbar stimulation, chronic low back pain (CLBP) patients with illness behaviour (IB) are unable to effectively engage a sensory modulation system utilised by patients without IB. 1. Furthermore, reduced insular cortex volume in CLBP patients with IB, may compound this problem. 2. . Pain Management Programs (PMP) has demonstrated reductions in IB and disability associated with chronic pain conditions. This current study aims to assess whether the pattern of cerebral response to pain in IB patients could be normalised by participation in a PMP. 12 patients with CLBP and IB (>4/5 Waddell signs present) were recruited prior to attending a 16-day PMP. FMRI scanning occurred prior to (PrePMP) and upon completion of the PMP (PostPMP). 8 healthy volunteers (HC) were scanned once. As in previous research, painful stimuli consisted of intense electrical stimulation delivered bilaterally to the lower back. The presentation of 3 colours indicated the likelihood of receiving 10second stimulation to the lower back (Always, Never and Maybe). IB scores were significantly reduced PostPMP (p <0.05). FMRI group activation maps for the Always condition revealed PostPMP patients increased activation in posterior regions, areas similarly activated by HC. For the Maybe condition, compared to PrePMP group, HC demonstrated greater activation in precuneus and middle and inferior frontal regions. Compared to their pre-treatment selves, PostPMP patients demonstrated increased activation in posterior and frontal regions. The results demonstrate that completion of a 16-day PMP leads to alteration in the brain's response to painful low back stimulation in CLBP patients with IB. Increased activation is seen in regions associated with the top-down modulation of pain. The response is similar to that seen in HC, and greater than before PMP confirming that the PMP process facilitates the utilisation of more normal coping pathways in response to CLBP


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

Aims

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

Patients and Methods

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


The Journal of Bone & Joint Surgery British Volume
Vol. 91-B, Issue 4 | Pages 517 - 521
1 Apr 2009
Okoro T Sell P

We compared a group of 46 somatised patients with a control group of 41 non-somatised patients who had undergone elective surgery to the lumbar spine in an attempt to identify pre-operative factors which could predict the outcome. In a prospective single-centre study, the Distress and Risk Assessment method consisting of a modified somatic perception questionnaire and modified Zung depression index was used pre-operatively to identify somatised patients. The type and number of consultations were correlated with functional indicators of outcome, such as the Oswestry disability index and a visual analogue score for pain in the leg after follow-up for six and 12 months.

Similar improvements in the Oswestry disability index were found in the somatised and non-somatised groups. Somatised patients who had a good outcome on the Oswestry disability index had an increased number of orthopaedic consultations (50 of 83 patients (60%) vs 29 of 73 patients (39.7%); p = 0.16) and waited less time for their surgery (5.5 months) (sd 5.26) vs 10.1 months (sd 6.29); p = 0.026). No other identifiable factors were found. A shorter wait for surgery appeared to predict a good outcome. Early review by a spinal surgeon and a reduced waiting time to surgery appear to be of particular benefit to somatised patients.


The Journal of Bone & Joint Surgery British Volume
Vol. 87-B, Issue 7 | Pages 959 - 964
1 Jul 2005
Jansson K Németh G Granath F Jönsson B Blomqvist P

We investigated the pre-operative and one-year post-operative health-related quality of life (HRQOL) outcome by using a Euroqol (EQ-5D) questionnaire in 263 patients who had undergone surgery for herniation of a lumbar disc. Data from the National Swedish Register for lumbar spinal surgery between 2001 and 2002 were used and, in addition, a comparison between our cohort and a Swedish EQ-5D population survey was performed. We analysed the pre- and post-operative quality of life data, age, gender, smoking habits, pain and walking capacity.

The mean age of the patients was 42 years (20 to 66); 155 (59%) were men and 69 (26%) smoked. Pre-operatively, 72 (17%) could walk at least 1 km compared with 200 (76%) postoperatively.

The mean EQ-5D score improved from 0.29 to 0.70, and the HRQOL improved in 195 (74%) of the patients. The pre-operative score did not influence the post-operative score. In most patients, all five EQ-5D dimensions improved, but did not reach the level reported by an age- and gender-matched population sample (mean difference 0.17). Predictors for poor outcome were smoking, a short pre-operative walking distance, and a long history of back pain.