Online songwriting reduces loneliness and postnatal depression and enhances social connectedness in women with young babies: randomised controlled trial

OBJECTIVE

Loneliness is a public health challenge associated with postnatal depression (PND). This study developed and tested an online songwriting intervention, with the aim of reducing loneliness and symptoms of PND and enhancing social connectedness among women with young babies.

STUDY DESIGN

This was a two-armed non-blinded randomised controlled trial (RCT, ISRCTN17647261).

METHODS

Randomisation was conducted in Excel using a 1:1 allocation, with participants (N = 89) allocated to an online 6-week songwriting intervention (Songs from Home) or to waitlist control. Inclusion criteria were women aged ≥18 years, with a baby ≤9 months old, reporting loneliness (4+ on UCLA 3-Item Loneliness Scale) and symptoms of PND (10+ on Edinburgh Postnatal Depression Scale [EPDS]). Loneliness (UCLA-3) was measured at baseline, after each intervention session and at 4-week follow-up. The secondary measures of PND (EPDS) and social connectedness (Social Connectedness Revised 15-item Scale [SC-15]) were measured at baseline, postintervention and at 4-week follow-up (Week 10). Factorial mixed analyses of variance with planned custom contrasts were conducted for each outcome variable comparing the intervention and control groups over time and across baseline, Weeks 1-6 and the follow-up at Week 10 for each outcome variable.

RESULTS

Compared with waitlist control, the intervention group reported significantly lower scores postintervention and at follow-up for loneliness (P < 0.001, η²_P = 0.098) and PND (P < 0.001, η²_P = 0.174) and significantly higher scores at follow-up for social connectedness (P < 0.001, η²_P = 0.173).

CONCLUSIONS

A 6-week online songwriting intervention for women with young babies can reduce loneliness and symptoms of PND and increase social connectedness.

1231 MANAGING THE DETERIORATING PATIENT IN A REHABILITATION HOSPITAL: THE ROLE OF TREATMENT ESCALATION PLANNING

Introduction

The pandemic has shown how vital patient-centred treatment escalation planning (TEP) is for older people. Locally we have seen inappropriate transfer of dying patients to acute hospitals from rehabilitation units. Mortality review found a lack of useful TEPs in these cases. Baseline data in our rehabilitation hospital showed 54% of patients had a TEP and 16% a decision made about repatriation during acute illness. We aimed to increase the proportion of patients in this setting with a TEP to 80% over six months.

Methods

A multidisciplinary team of doctors, ANPs and senior nurses worked together. We conducted stakeholder engagement to understand the factors that result in transfer of patients and found that completion of TEPs was felt to be an effective way to improve communication out of hours. Our first test of change involved an ANP raising the CPR status and TEP for all new patients at the weekly MDT. We measured the process of what decisions were made once a fortnight. Outcome data on the overall completion of TEPs and repatriation decisions was collected each month.

Results

New decisions were made at each MDT – for example, on one date two new DNACPRs and six new TEPs were completed. Overall TEP completion rate varies however since our first intervention we have seen a sustained increase in the number of TEPs which include consideration of repatriation – from 16% to 60%. Ongoing conversation with doctors in training reveals challenges with ward staff awareness of TEP content and their ability to guide unexpected events out of hours.

Conclusion

Involvement of motivated permanent staff across disciplines has allowed us to ensure escalation plans are being made each week and see a sustained increase.

A cost comparison of traditional drainage and SUDS in Scotland

The Dunfermline Eastern Expansion (DEX) is a 350 ha mixed development which commenced in 1996. Downstream water quality and flooding issues necessitated a holistic approach to drainage planning and the site has become a European showcase for the application of Sustainable Urban Drainage Systems (SUDS). However, there is minimal data available regarding the real costs of operating and maintaining SUDS to ensure they continue to perform as per their design function. This remains one of the primary barriers to the uptake and adoption of SUDS. This paper reports on what is understood to be the only study in the UK where actual costs of constructing and maintaining SUDS have been compared to an equivalent traditional drainage solution. To compare SUDS costs with traditional drainage, capital and maintenance costs of underground storage chambers of analogous storage volumes were estimated. A whole life costing methodology was then applied to data gathered. The main objective was to produce a reliable and robust cost comparison between SUDS and traditional drainage. The cost analysis is supportive of SUDS and indicates that well designed and maintained SUDS are more cost effective to construct, and cost less to maintain than traditional drainage solutions which are unable to meet the environmental requirements of current legislation.

Surgical interventions for lumbar disc prolapse

BACKGROUND

Disc prolapse accounts for five percent of low-back disorders but is one of the most common reasons for surgery.

OBJECTIVES

The objective of this review was to assess the effects of surgical interventions for the treatment of lumbar disc prolapse.

SEARCH STRATEGY

We searched the Cochrane Central Register of Controlled Trials, MEDLINE, PubMed, Spine and abstracts of the main spine society meetings within the last five years. We also checked the reference lists of each retrieved articles and corresponded with experts. All data found up to 1 January 2007 are included.

SELECTION CRITERIA

Randomized trials (RCT) and quasi-randomized trials (QRCT) of the surgical management of lumbar disc prolapse.

DATA COLLECTION AND ANALYSIS

Two review authors assessed trial quality and extracted data from published papers. Additional information was sought from the authors if necessary.

MAIN RESULTS

Forty RCTs and two QRCTs were identified, including 17 new trials since the first edition of this review in 1999. Many of the early trials were of some form of chemonucleolysis, whereas the majority of the later studies either compared different techniques of discectomy or the use of some form of membrane to reduce epidural scarring. Despite the critical importance of knowing whether surgery is beneficial for disc prolapse, only four trials have directly compared discectomy with conservative management and these give suggestive rather than conclusive results. However, other trials show that discectomy produces better clinical outcomes than chemonucleolysis and that in turn is better than placebo. Microdiscectomy gives broadly comparable results to standard discectomy. Recent trials of an inter-position gel covering the dura (five trials) and of fat (four trials) show that they can reduce scar formation, though there is limited evidence about the effect on clinical outcomes. There is insufficient evidence on other percutaneous discectomy techniques to draw firm conclusions. Three small RCTs of laser discectomy do not provide conclusive evidence on its efficacy, There are no published RCTs of coblation therapy or trans-foraminal endoscopic discectomy.

AUTHORS' CONCLUSIONS

Surgical discectomy for carefully selected patients with sciatica due to lumbar disc prolapse provides faster relief from the acute attack than conservative management, although any positive or negative effects on the lifetime natural history of the underlying disc disease are still unclear. Microdiscectomy gives broadly comparable results to open discectomy. The evidence on other minimally invasive techniques remains unclear (with the exception of chemonucleolysis using chymopapain, which is no longer widely available).

The development of an evidence-based patient booklet for patients undergoing lumbar discectomy and un-instrumented decompression

Post-operative management after lumbar surgery is inconsistent leading to uncertainty amongst surgeons and patients about post-operative restrictions, reactivation, and return to work. This study aimed to review the evidence on post-operative management, with a view to developing evidence-based messages for a patient booklet on post-operative management after lumbar discectomy or un-instrumented decompression. A systematic literature search produced a best-evidence synthesis of information and advice on post-operative restrictions, activation, rehabilitation, and expectations about outcomes. Evidence statements were extracted and developed into patient-centred messages for an educational booklet. The draft text was evaluated by peer and patient review. The literature review found little evidence for post-operative activity restrictions, and a strong case for an early active approach to post-operative management. The booklet was built around key messages derived from the literature review and aimed to reduce uncertainty, promote positive beliefs, encourage early reactivation, and provide practical advice on self-management. Feedback from the evaluations were favourable from both review groups, suggesting that this evidence-based approach to management is acceptable and it has clinical potential.

Surgical interventions for lumbar disc prolapse

BACKGROUND

Disc prolapse accounts for five percent of low-back disorders but is one of the most common reasons for surgery.

OBJECTIVES

The objective of this review was to assess the effects of surgical interventions for the treatment of lumbar disc prolapse.

SEARCH STRATEGY

We searched the Cochrane Central Register of Controlled Trials, MEDLINE, PubMed, Spine and abstracts of the main spine society meetings within the last five years. We also checked the reference lists of each retrieved articles and corresponded with experts. All data found up to 1 June 2006 are included.

SELECTION CRITERIA

Randomized trials (RCT) and quasi-randomized trials (QRCT) of the surgical management of lumbar disc prolapse.

DATA COLLECTION AND ANALYSIS

Two review authors assessed trial quality and extracted data from published papers. Additional information was sought from the authors if necessary.

MAIN RESULTS

Thirty-nine RCTs and two QRCTs were identified, including 16 new trials since the first edition of this review in 1999. Many of the early trials were of some form of chemonucleolysis, whereas the majority of the later studies either compared different techniques of discectomy or the use of some form of membrane to reduce epidural scarring. Despite the critical importance of knowing whether surgery is beneficial for disc prolapse, only three trials have directly compared discectomy with conservative management and these give suggestive rather than conclusive results. However, other trials show that discectomy produces better clinical outcomes than chemonucleolysis and that in turn is better than placebo. Microdiscectomy gives broadly comparable results to standard discectomy. Recent trials of an inter-position gel covering the dura (five trials) and of fat (four trials) show that they can reduce scar formation, though there is limited evidence about the effect on clinical outcomes. There is insufficient evidence on other percutaneous discectomy techniques to draw firm conclusions. Three small RCTs of laser discectomy do not provide conclusive evidence on its efficacy, There are no published RCTs of coblation therapy or trans-foraminal endoscopic discectomy.

AUTHORS' CONCLUSIONS

Surgical discectomy for carefully selected patients with sciatica due to lumbar disc prolapse provides faster relief from the acute attack than conservative management, although any positive or negative effects on the lifetime natural history of the underlying disc disease are still unclear. Microdiscectomy gives broadly comparable results to open discectomy. The evidence on other minimally invasive techniques remains unclear (with the exception of chemonucleolysis using chymopapain, which is no longer widely available).

Surgery for degenerative lumbar spondylosis

BACKGROUND

Surgical investigations and interventions account for large health care utilisation and costs, but the scientific evidence for most procedures is still limited.

OBJECTIVES

Degenerative conditions affecting the lumbar spine are variously described as lumbar spondylosis or degenerative disc disease (which we regarded as one entity) and may be associated with back pain and associated leg symptoms, instability, spinal stenosis and/or degenerative spondylolisthesis. The objective of this review was to assess current scientific evidence on the effectiveness of surgical interventions for degenerative lumbar spondylosis.

SEARCH STRATEGY

We searched CENTRAL, MEDLINE, PubMed, Spine and ISSLS abstracts, with citation tracking from the retrieved articles. We also corresponded with experts. All data found up to 31 March 2005 are included.

SELECTION CRITERIA

Randomised (RCTs) or quasi-randomised trials of surgical treatment of lumbar spondylosis.

DATA COLLECTION AND ANALYSIS

Two authors assessed trial quality and extracted data from published papers. Additional information was sought from the authors if necessary.

MAIN RESULTS

Thirty-one published RCTs of all forms of surgical treatment for degenerative lumbar spondylosis were identified. The trials varied in quality: only the more recent trials used appropriate methods of randomization, blinding and independent assessment of outcome. Most of the earlier published results were of technical surgical outcomes with some crude ratings of clinical outcome. More of the recent trials also reported patient-centered outcomes of pain or disability, but there is still very little information on occupational outcomes. There was a particular lack of long term outcomes beyond two to three years. Seven heterogeneous trials on spondylolisthesis, spinal stenosis and nerve compression permitted limited conclusions. Two new trials on the effectiveness of fusion showed conflicting results. One showed that fusion gave better clinical outcomes than conventional physiotherapy, while the other showed that fusion was no better than a modern exercise and rehabilitation programme. Eight trials showed that instrumented fusion produced a higher fusion rate (though that needs to be qualified by the difficulty of assessing fusion in the presence of metal-work), but any improvement in clinical outcomes is probably marginal, while there is other evidence that it may be associated with higher complication rates. Three trials with conflicting results did not permit any conclusions about the relative effectiveness of anterior, posterior or circumferential fusion. Preliminary results of two small trials of intra-discal electrotherapy showed conflicting results. Preliminary data from three trials of disc arthroplasty did not permit any firm conclusions.

AUTHORS' CONCLUSIONS

Limited evidence is now available to support some aspects of surgical practice. Surgeons should be encouraged to perform further RCTs in this field.

Surgery for degenerative lumbar spondylosis

BACKGROUND

Surgical investigations and interventions account for large health care utilisation and costs, but the scientific evidence for most procedures is still limited.

OBJECTIVES

Degenerative conditions affecting the lumbar spine are variously described as lumbar spondylosis or degenerative disc disease (which we regarded as one entity) and may be associated with back pain and associated leg symptoms, instability, spinal stenosis and/or degenerative spondylolisthesis. The objective of this review was to assess current scientific evidence on the effectiveness of surgical interventions for degenerative lumbar spondylosis.

SEARCH STRATEGY

We searched CENTRAL, MEDLINE, PubMed, Spine and ISSLS abstracts, with citation tracking from the retrieved articles. We also corresponded with experts. All data found up to 31 March 2004 are included.

SELECTION CRITERIA

Randomised (RCTs) or quasi-randomised trials of surgical treatment of lumbar spondylosis.

DATA COLLECTION AND ANALYSIS

Two authors assessed trial quality and extracted data from published papers. Additional information was sought from the authors if necessary.

MAIN RESULTS

Thirty-one published RCTs of all forms of surgical treatment for degenerative lumbar spondylosis were identified. The trials varied in quality: only the more recent trials used appropriate methods of randomization, blinding and independent assessment of outcome. Most of the earlier published results were of technical surgical outcomes with some crude ratings of clinical outcome. More of the recent trials also reported patient-centered outcomes of pain or disability, but there is still very little information on occupational outcomes. There was a particular lack of long term outcomes beyond two to three years. Seven heterogeneous trials on spondylolisthesis, spinal stenosis and nerve compression permitted limited conclusions. Two new trials on the effectiveness of fusion showed conflicting results. One showed that fusion gave better clinical outcomes than conventional physiotherapy, while the other showed that fusion was no better than a modern exercise and rehabilitation programme. Eight trials showed that instrumented fusion produced a higher fusion rate (though that needs to be qualified by the difficulty of assessing fusion in the presence of metal-work), but did not improve clinical outcomes, while there is other evidence that it may be associated with higher complication rates. Three trials with conflicting results did not permit any conclusions about the relative effectiveness of anterior, posterior or circumferential fusion. Preliminary results of two small trials of intra-discal electrotherapy showed conflicting results. Preliminary data from three trials of disc arthroplasty did not permit any firm conclusions.

AUTHORS' CONCLUSIONS

Limited evidence is now available to support some aspects of surgical practice. Surgeons should be encouraged to perform further RCTs in this field.

Evaluation of an evidence based patient educational booklet for management of whiplash associated disorders

OBJECTIVES

This study aimed to develop and evaluate an evidence based educational booklet on whiplash associated disorders.

METHODS

A comprehensive review of the available scientific evidence produced a set of unambiguous patient centred messages that challenge unhelpful beliefs about whiplash and promote an active approach to recovery. These messages were incorporated into a novel booklet, which was then evaluated qualitatively for end user acceptability and its ability to impart the intended messages, and quantitatively for its ability to improve beliefs about whiplash and what to do about it. The subjects comprised people attending accident and emergency or manipulative practice with a whiplash associated disorder, along with a sample of workers without a whiplash associated disorder (n = 142).

RESULTS

The qualitative results showed that the booklet was considered easy to read, understandable, believable, and conveyed its key messages. Quantitatively, it produced a substantial statistically significant improvement in beliefs about whiplash among accident and emergency patients (mean 6.5, 95% CI 3.9 to 9.1, p<0.001), and among workers (mean 9.4, 95% CI 7.9 to 10.9, p<0.001), but the shift in the more chronic manipulation patients was substantially smaller (mean 3.3, 95% CI 0.5 to 6.1, p<0.05).

CONCLUSIONS

A rigorously developed educational booklet on whiplash (The Whiplash Book) was found acceptable to patients, and capable of improving beliefs about whiplash and its management; it seems suitable for use in the accident and emergency environment, and for wider distribution at the population level. A randomised controlled trial would be required to determine whether it exerts an effect on behaviour and clinical outcomes.

Occupational health guidelines for the management of low back pain: an international comparison

BACKGROUND

The enormous socioeconomic burden of low back pain emphasises the need for effective management of this problem, especially in an occupational context. To address this, occupational guidelines have been issued in various countries.

AIMS

To compare available international guidelines dealing with the management of low back pain in an occupational health care setting.

METHODS

The guidelines were compared regarding generally accepted quality criteria using the AGREE instrument, and also summarised regarding the guideline committee, the presentation, the target group, and assessment and management recommendations (that is, advice, return to work strategy, and treatment).

RESULTS

and

CONCLUSIONS

The results show that the quality criteria were variously met by the guidelines. Common flaws concerned the absence of proper external reviewing in the development process, lack of attention to organisational barriers and cost implications, and lack of information on the extent to which editors and developers were independent. There was general agreement on numerous issues fundamental to occupational health management of back pain. The assessment recommendations consisted of diagnostic triage, screening for "red flags" and neurological problems, and the identification of potential psychosocial and workplace barriers for recovery. The guidelines also agreed on advice that low back pain is a self limiting condition and, importantly, that remaining at work or an early (gradual) return to work, if necessary with modified duties, should be encouraged and supported.

Whiplash associated disorders: a review of the literature to guide patient information and advice

OBJECTIVES

To review the literature and provide an evidence based framework for patient centred information and advice on whiplash associated disorders.

METHODS

A systematic literature search was conducted, which included both clinical and non-clinical articles to encompass the wide range of patients' informational needs. From the studies and previous reviews retrieved, 163 were selected for detailed review. The review process considered the quantity, consistency, and relevance of all selected articles. These were categorised under a grading system to reflect the quality of the evidence, and then linked to derived evidence statements.

RESULTS

The main messages that emerged were: physical serious injury is rare; reassurance about good prognosis is important; over-medicalisation is detrimental; recovery is improved by early return to normal pre-accident activities, self exercise, and manual therapy; positive attitudes and beliefs are helpful in regaining activity levels; collars, rest, and negative attitudes and beliefs delay recovery and contribute to chronicity. These findings were synthesised into patient centred messages with the potential to reduce the risk of chronicity.

CONCLUSIONS

The scientific evidence on whiplash associated disorders is of variable quality, but sufficiently robust and consistent for the purpose of guiding patient information and advice. While the delivery of appropriate messages can be both oral and written, consistency is imperative, so an innovative patient educational booklet, The Whiplash Book, has been developed and published.

Rehabilitation after lumbar disc surgery

BACKGROUND

Although several rehabilitation programs, physical fitness programs or protocols regarding instruction for patients to return to work after lumbar disc surgery have been suggested, little is known about the efficacy and effectiveness of these treatments. There are still persistent fears of causing re-injury, re-herniation, or instability.

OBJECTIVES

The objective of this systematic review was to evaluate the effectiveness of active treatments that are used in the rehabilitation after first-time lumbar disc surgery.

SEARCH STRATEGY

We searched the MEDLINE, EMBASE and Psyclit databases up to April 2000 and the Cochrane Controlled Trials Register 2001, Issue 3.

SELECTION CRITERIA

Both randomized and non-randomized controlled trials on any type of active rehabilitation program after first-time disc surgery were included.

DATA COLLECTION AND ANALYSIS

Two independent reviewers performed the inclusion of studies and two other reviewers independently performed the methodological quality assessment. A rating system that consists of four levels of scientific evidence summarizes the results.

MAIN RESULTS

Thirteen studies were included, six of which were of high quality. There is no strong evidence for the effectiveness for any treatment starting immediately post-surgery, mainly because of lack of (good quality) studies. For treatments that start four to six weeks post-surgery there is strong evidence (level 1) that intensive exercise programs are more effective on functional status and faster return to work (short-term follow-up) as compared to mild exercise programs and there is strong evidence (level 1) that on long term follow up there is no difference between intensive exercise programs and mild exercise programs with regard to overall improvement. For all other primary outcome measures for the comparison between intensive and mild exercise programs there is conflicting evidence (level 3) with regard to long-term follow-up. Furthermore, there is no strong evidence for the effectiveness of supervised training as compared to home exercises. There was also no strong evidence for the effectiveness of multidisciplinary rehabilitation as compared to usual care. There is limited evidence (level 3) that treatments in working populations that aim at return to work are more effective than usual care with regard to return to work. Also, there is limited evidence (level 3) that low-tech and high-tech exercises, started more than 12 months post-surgery are more effective in improving low back functional status as compared to physical agents, joint manipulations or no treatment. Finally, there is no strong evidence for the effectiveness of any specific intervention when added to an exercise program, regardless of whether exercise programs start immediately post-surgery or later. None of the investigated treatments seem harmful with regard to re-herniation or re-operation.

REVIEWER'S CONCLUSIONS

There is no evidence that patients need to have their activities restricted after first time lumbar disc surgery. There is strong evidence for intensive exercise programs (at least if started about 4-6 weeks post-operative) on short term for functional status and faster return to work and there is no evidence they increase the re-operation rate. It is unclear what the exact content of post-surgery rehabilitation should be. Moreover, there are no studies that investigated whether active rehabilitation programs should start immediately post-surgery or possibly four to six weeks later.

Clinical guidelines for the management of low back pain in primary care: an international comparison

STUDY DESIGN

Descriptive study.

OBJECTIVES

To compare national clinical guidelines on low back pain.

SUMMARY OF BACKGROUND DATA

To rationalize the management of low back pain, clinical guidelines have been issued in various countries around the world. Given that the available scientific evidence is the same, irrespective of the country, one would expect these guidelines to include more or less similar recommendations regarding diagnosis and treatment.

METHODS

Guidelines were included that met the following criteria: the target group consisted of primary care health professionals, and the guideline was published in English, German, or Dutch. Only one guideline per country was included: the one most recently published.

RESULTS

Clinical guidelines from 11 different countries published from 1994 until 2000 were included in this review. The content of the guidelines appeared to be quite similar regarding the diagnostic classification (diagnostic triage) and the use of diagnostic and therapeutic interventions. Consistent features were the early and gradual activation of patients, the discouragement of prescribed bed rest, and the recognition of psychosocial factors as risk factors for chronicity. However, there were discrepancies for recommendations regarding exercise therapy, spinal manipulation, muscle relaxants, and patient information.

CONCLUSION

The comparison of clinical guidelines for the management of low back pain showed that diagnostic and therapeutic recommendations were generally similar. Updates of the guidelines are planned in most countries, although so far produced only in the United Kingdom. However, new evidence may lead to stronger conclusions and enable future guidelines to become even more concordant.

Occupational health guidelines for the management of low back pain at work: evidence review

There is increasing demand for evidence-based health care. Back pain is one of the most common and difficult occupational health problems, but there has been no readily available evidence base or guidance on management. There are well-established clinical guidelines for the management of low back pain, but these provide limited guidance on the occupational aspects. Occupational Health Guidelines for the Management of Low Back Pain at Work were launched by the Faculty of Occupational Medicine in March 2000. These are the first national occupational health guidelines in the UK and, as far as we are aware, the first truly evidence-linked occupational health guidelines for back pain in the world. They were based on an extensive, systematic review of the scientific literature predominantly from occupational settings or concerning occupational outcomes. The full evidence review is on the Faculty web site (www.facoccmed.ac.uk), but an abridged version is presented here to aid its dissemination.

Surgery for degenerative lumbar spondylosis

BACKGROUND

This section is under preparation and will be included in the next issue

OBJECTIVES

Degenerative conditions affecting the lumbar spine are variously described as lumbar spondylosis or degenerative disc disease (which we regarded as one entity) and are associated with back pain, instability, spinal stenosis and degenerative spondylolisthesis. The objective of this review was to assess the effects of surgical interventions for the treatment of degenerative lumbar spondylosis.

SEARCH STRATEGY

We searched the Cochrane Controlled Trials Register, Medline, Embase, Biosis, Dissertation Abstracts, Index to UK Thesis, and reference lists of the retrieved articles and we corresponded with experts.

SELECTION CRITERIA

Randomised or quasi-randomised trials of surgical treatment of lumbar spondylosis

DATA COLLECTION AND ANALYSIS

Two reviewers assessed trial quality and extracted data from published papers. Additional information was sought from the authors if necessary.

MAIN RESULTS

Fourteen published trials of all forms of surgical treatment for degenerative lumbar spondylosis were identified. There were many serious weaknesses of trial design, including poor methods of randomisation, lack of blinding and lack of independent assessment of outcome which at times gave considerable potential for bias. Most of the published results were reporting on technical surgical outcomes with some crude ratings of clinical outcome, but few patient-centred outcomes of pain, disability or capacity for work. There was a particular lack of long-term outcomes. This review found no published trials comparing any form of surgery for degenerative lumbar spondylosis compared with natural history, placebo, or any form of conservative treatment. Nine trials randomly compared instrumented and non-instrumented fusion. Instrumented fusion produced a higher fusion rate (though that needs to be qualified by the difficulty of assessing fusion in the presence of metal-work) but did not improve clinical outcomes and there is evidence that it may be associated with higher complication rates. The few and heterogeneous trials on spondylolisthesis, spinal stenosis and nerve compression permitted very limited conclusions.

REVIEWER'S CONCLUSIONS

There is no scientific evidence about the effectiveness of any form of surgical decompression or fusion for degenerative lumbar spondylosis compared with natural history, placebo, or conservative treatment.

Surgery for lumbar disc prolapse

OBJECTIVES

The primary rationale for surgery for disc prolapse is to relieve nerve root irritation or compression due to herniated disc material. Claims of the merits of alternative surgical procedures are made without clear evidence about clinical outcomes. The objective of this review was to assess the effects of surgical interventions for the treatment of lumbar disc prolapse.

SEARCH STRATEGY

We searched the Cochrane Controlled Trials Register, Medline, Embase, Biosis, Dissertation Abstracts, Index to UK Thesis, and reference lists of the retrieved articles up to March 1997 and we corresponded with experts.

SELECTION CRITERIA

Randomised and quasi-randomised trials of the surgical management of lumbar disc prolapse.

DATA COLLECTION AND ANALYSIS

Two reviewers assessed trial quality and extracted data from published papers. Additional information was sought from the authors if necessary.

MAIN RESULTS

Twenty-seven trials were found. There were methodological weaknesses in many of the trials. Sixteen of the 27 trials were of some form of chemonucleolysis. Ten trials compared different surgical techniques, although only one of these compared surgical discectomy with conservative management. Surgical discectomy produced better clinical outcomes than chemonucleolysis with chymopapain, and chemonucleolysis produced better clinical outcomes than placebo. Three trials showed no difference in clinical outcomes between microdiscectomy and standard discectomy. Three trials failed to show a significant reduction in scar formation or improved clinical outcomes by inserting an inter-position membra ne to cover the spinal dura after discectomy. Three trials of percutaneous discectomy provided moderate evidence that it produces poorer clinical outcomes than standard discectomy or chymopapain. We found no published randomised trials of laser discectomy.

REVIEWER'S CONCLUSIONS

Chemonucleolysis is more effective than placebo and it is less invasive but less effective than surgical disectomy. Surgical discectomy for carefully selected patients with sciatica due to lumbar disc prolapse provides faster relief from the acute attack than conservative management, although any positive or negative effects on the lifetime natural history of the underlying disc disease are unclear.

Information and advice to patients with back pain can have a positive effect. A randomized controlled trial of a novel educational booklet in primary care

STUDY DESIGN

A double-blind, randomized controlled trial of a novel educational booklet compared with a traditional booklet for patients seeking treatment in primary care for acute or recurrent low back pain.

OBJECTIVE

To test the impact of a novel educational booklet on patients' beliefs about back pain and functional outcome.

SUMMARY OF BACKGROUND DATA

The information and advice that health professionals give to patients may be important in health care intervention, but there is little scientific evidence of their effectiveness. A novel patient educational booklet, The Back Book, has been developed to provide evidence-based information and advice consistent with current clinical guidelines.

METHODS

One hundred sixty-two patients were given either the experimental booklet or a traditional booklet. The main outcomes studied were fear-avoidance beliefs about physical activity, beliefs about the inevitable consequences of back trouble, the Roland Disability Questionnaire, and visual analogue pain scales. Postal follow-up response at 1 year after initial treatment was 78%.

RESULTS

Patients receiving the experimental booklet showed a statistically significant greater early improvement in beliefs which was maintained at 1 year. A greater proportion of patients with an initially high fear-avoidance beliefs score who received the experimental booklet had clinically important improvement in fear-avoidance beliefs about physical activity at 2 weeks, followed by a clinically important improvement in the Roland Disability Questionnaire score at 3 months. There was no effect on pain.

CONCLUSION

This trial shows that carefully selected and presented information and advice about back pain can have a positive effect on patients' beliefs and clinical outcomes, and suggests that a study of clinically important effects in individual patients may provide further insights into the management of low back pain.

The Cochrane review of surgery for lumbar disc prolapse and degenerative lumbar spondylosis

STUDY DESIGN

A Cochrane review of randomized controlled trials.

OBJECTIVES

To collate the scientific evidence on surgical management for lumbar-disc prolapse and degenerative lumbar spondylosis.

SUMMARY OF BACKGROUND DATA

Surgical investigations and interventions account for as much as one third of the health care costs for spinal disorders, but the scientific evidence for most procedures still is unclear.

METHODS

A highly sensitive search strategy identified all published randomized controlled trials. Cochrane methodology was used for meta-analysis of the results.

RESULTS

Twenty-six randomized controlled trials of surgery for lumbar disc prolapse and 14 trials of surgery for degenerative lumbar spondylosis were identified. Methodologic weaknesses were found in many of the trials. Only one trial directly compared discectomy and conservative management. Meta-analyses showed that surgical discectomy produces better clinical outcomes than chemonucleolysis, which is better than placebo. Three trials showed no difference in clinical outcomes between microdiscectomy and standard discectomy, but in three other studies, both produced better results than percutaneous discectomy. Three trials showed that inserting an interposition membrane after discectomy does not significantly reduce scar formation or alter clinical outcomes. Five heterogeneous trials on spinal stenosis and degenerative spondylolisthesis permit very limited conclusions. There were nine trials of instrumented versus noninstrumented fusion: Meta-analysis showed that instrumentation may facilitate fusion but does not improve clinical outcomes.

CONCLUSIONS

There is now strong evidence on the relative effectiveness of surgical discectomy versus chemonucleolysis versus placebo. There is considerable evidence on the clinical effectiveness of discectomy for carefully selected patients with sciatica caused by lumbar disc prolapse that fails to resolve with conservative management. There is no scientific evidence on the effectiveness of any form of surgical decompression or fusion for degenerative lumbar spondylosis compared with natural history, placebo, or conservative management. The Cochrane reviews will be updated continuously as other trials become available.

[Teaching resources of a hospital Gynecology-Obstetrics service. Review of the literature and practical applications]

OBJECTIVES

To summarize the methods encountered in a gynecological department for teaching medical students.

STUDY

Review of the Medline literature underlying the benefits and disadvantages of each method using the issues of the modern theories of teaching.

RESULTS

All the methods are helpful for learning, with different and complementary objectives. Students can constitute a set of skills using a teaching program containing clear objectives and evaluation on which the future medical practice will be based.

CONCLUSION

Students have immediate benefits from an active clinical learning involving them and are prepared to the Continued Medical Education.

Behavioral responses to examination. A reappraisal of the interpretation of "nonorganic signs"

Waddell et al in 1980 developed a standardized assessment of behavioral responses to examination. The signs were associated with other clinical measures of illness behavior and distress, and are not simply a feature of medicolegal presentations. Despite clear caveats about the interpretation of the signs, they have been misinterpreted and misused both clinically and medicolegally. Behavioral responses to examination provide useful clinical information, but need to be interpreted with care and understanding. Isolated signs should not be overinterpreted. Multiple signs suggest that the patient does not have a straightforward physical problem, but that psychological factors also need to be considered. Some patients may require both physical management of their physical pathology and more careful management of the psychosocial and behavioral aspects of their illness. Behavioral signs should be understood as response affected by fear in the context of recovery from injury and the development of chronic incapacity. They offer only a psychological "yellow-flag" and not a complete psychological assessment. Behavioral signs are not on their own a test of credibility or faking.

Outcome measures for low back pain research. A proposal for standardized use

STUDY DESIGN

An international group of back pain researchers considered recommendations for standardized measures in clinical outcomes research in patients with back pain.

OBJECTIVES

To promote more standardization of outcome measurement in clinical trials and other types of outcomes research, including meta-analyses, cost-effectiveness analyses, and multicenter studies.

SUMMARY OF BACKGROUND DATA

Better standardization of outcome measurement would facilitate comparison of results among studies, and more complete reporting of relevant outcomes. Because back pain is rarely fatal or completely cured, outcome assessment is complex and involves multiple dimensions. These include symptoms, function, general well-being, work disability, and satisfaction with care.

METHODS

The panel considered several factors in recommending a standard battery of outcome measures. These included reliability, validity, responsiveness, and practicality of the measures. In addition, compatibility with widely used and promoted batteries such, as the American Academy of Orthopaedic Surgeons Lumbar Cluster were considered to minimize the need for changes when these instruments are used.

RESULTS

First, a six-item set was proposed, which is sufficiently brief that it could be used in routine care settings for quality improvement and for research purposes. An expanded outcome set, which would provide more precise measurement for research purposes, includes measures of severity and frequency of symptoms, either the Roland or the Oswestry Disability Scale, either the SF-12 or the EuroQol measure of general health status, a question about satisfaction with symptoms, three types of "disability days," and an optional single item on overall satisfaction with medical care.

CONCLUSION

Standardized measurement of outcomes would facilitate scientific advances in clinical care. A short, 6-item questionnaire and a somewhat expanded, more precise battery of questionnaires can be recommended. Although many considerations support such recommendations, more data on responsiveness and the minimally important change in scores are needed for most of the instruments.

Clinical guidelines in the management of low back pain

With the emergent concept of evidence-based practice, various countries have produced clinical guidelines for the management of acute low back pain since 1993-94. By and large the evidence-base for these proposals is consistent, though over the last 4 years it has increased considerably, and there has been a slight change of emphasis in several aspects. As all the guidelines are based on the same evidence, the similarity between them is not surprising. The common features are diagnostic triage along with periodic assessment to guide management strategies. There has been progressive reduction in the recommendation of rest as a treatment option, and early activation is increasingly recognized as a potent intervention. There has been a progressive recognition that psychosocial factors are important determinants for the risk of chronicity, and that such factors need to be addressed clinically. Specific therapeutic recommendations vary, but these are probably less important than the overall strategy. It is obviously hoped that clinical management should improve as a result of these initiatives, but effective dissemination and implementation are persisting concerns, and the effectiveness of clinical guidelines in changing clinical practice is still unproven.

Medically certified work loss, recurrence and costs of wage compensation for back pain: a follow-up study of the working population of Jersey

The 1 yr incidence, prevalence and wages compensation costs of work loss due to medically certified back pain in the working population of Jersey were identified by analysis of the Social Security database for the year 1994. A total of 2291 subjects absenting due to back pain during this period were followed for up to 3 yr to identify return to work rates and subsequent absences. Incidence and prevalence rates were 5.6 and 6.3%, respectively. The cost of wages compensation was 1.29 million pounds or 10.5% of such benefits paid. Work loss was greater for the second absence. The rate of return to work was broadly in line with that suggested by the Clinical Standards Advisory Group (CSAG), but the number still absent at 1 yr was less, suggesting that the CSAG figures for long-term absence may have been overestimated. The influence of compensation systems and unemployment on work-related absence due to back pain is highlighted.

Systematic reviews of bed rest and advice to stay active for acute low back pain

BACKGROUND

In the United Kingdom (UK), 9% of adults consult their doctor annually with back pain. The treatment recommendations are based on orthopaedic teaching, but the current management is causing increasing dissatisfaction. Many general practitioners (GPs) are confused about what constitutes effective advice.

AIM

To review all randomized controlled trials of bed rest and of medical advice to stay active for acute back pain.

METHOD

A systematic review based on a search of MEDLINE and EMBASE from 1966 to April 1996 with complete citation tracking for randomized controlled trials of bed rest or medical advice to stay active and continue ordinary daily activities. The inclusion criteria were: primary care setting, patients with low back pain of up to 3 months duration, and patient-centred outcomes (rate of recovery from the acute attack, relief of pain, restoration of function, satisfaction with treatment, days off work and return to work, development of chronic pain and disability, recurrent attacks, and further health care use).

RESULTS

Ten trials of bed rest and eight trials of advice to stay active were identified. Consistent findings showed that bed rest is not an effective treatment for acute low back pain but may delay recovery. Advice to stay active and to continue ordinary activities results in a faster return to work, less chronic disability, and fewer recurrent problems.

CONCLUSION

A simple but fundamental change from the traditional prescription of bed rest to positive advice about staying active could improve clinical outcomes and reduce the personal and social impact of back pain.

Low back pain: a twentieth century health care enigma

Despite greater knowledge, expertise, and health care resources for spinal pathologies, chronic disability resulting from nonspecific low back pain is rising exponentially in western society. Medical care certainly has not solved the everyday symptom of low back pain and even may be reinforcing and exacerbating the problem. An historic review shows that there is no change in the pathology or prevalence of low back pain: What has changed in our understanding and management. There are striking differences in health care for low back pain in the United States and the United Kingdom, although neither delivers the kind of care recommended by recent evidence-based guidelines. Medical care for low back pain in the United States is specialist-oriented, of high technology, and of high cost, but 40% of American patients seek chiropractic care for low back pain instead. National Health Service care for low back pain in the United Kingdom is underfunded, too little and too late, and 55% of British patients pay for private therapy instead. Despite the different health care systems, treatment availability, and costs, there seems to be little difference in clinical outcomes or the social impact of low back pain in the two countries. There is growing dissatisfaction with health care for low back pain on both sides of the Atlantic. Future health care for patients with nonspecific low back pain should be designed to meet their specific needs.

Modern management of spinal disorders

This review of the clinical management and health care for spinal disorders focuses on nonspecific low back pain. It is set against the historical background and epidemiology of low back pain and current health care in both the United States and the United Kingdom. Recent U.S. and U.K. Clinical Guidelines for low back pain are very similar. Principles are proposed for the better organization of future health care for low back pain.

Semi-open needle biopsy of the upper thoracic spine

STUDY DESIGN

A semi-open needle technique allowing safe biopsy of the upper thoracic spine is described.

SUMMARY OF BACKGROUND DATA

It has been performed in five cases with an accuracy of 100% and no complications.

CONCLUSION

The authors recommend its use between T1 and T4, or where the normal anatomy is very distorted.

An international comparison of back surgery rates

SUMMARY OF BACKGROUND DATA

Although high geographic variation in back surgery rates within the United States have been documented, international comparisons have not been published.

METHODS

The authors compared rates of back surgery in eleven developed countries to determine if back surgery rates are higher: 1) in the United States than in other developed countries, 2) in countries with more neurologic and orthopaedic surgeons per capita, and 3) in countries with higher rates of other surgical procedures. Data on back surgery rates and physician supply were obtained from health agencies within these eleven countries. Country-specific rates of other surgical procedures were available from published sources.

RESULTS

The rate of back surgery in the United States was at least 40% higher than in any other country and was more than five times those in England and Scotland. Back surgery rates increased almost linearly with the per capita supply of orthopaedic and neurosurgeons in the country. Countries with high back surgery rates also had high rates of other discretionary procedures such as tonsillectomy and hysterectomy.

CONCLUSIONS

These findings illustrate the potentially large impact of health system differences on rates of back surgery. Better outcome studies, however, are needed to determine whether Americans are being subjected to excessive surgery or if those in other developed countries are suffering because back surgery is underutilized.

Trunk strength testing with iso-machines. Part 1: Review of a decade of scientific evidence

This review of the scientific literature on isokinetic and isoinertial testing of dynamic trunk strength related to low back pain using "iso-machines" identified 108 items published in the past decade. There was inadequate scientific evidence to support the use of iso-machines in preemployment screening, routine clinical assessment or medico-legal evaluation.

Trunk strength testing with iso-machines. Part 2: Experimental evaluation of the Cybex II Back Testing System in normal subjects and patients with chronic low back pain

This experimental evaluation of Cybex II isokinetic measurement was based on 70 normal subjects and 120 patients with chronic low back pain. It considered: reliability and learning effect; discrimination of individual patients versus normal subjects; relationship to clinical measures; assessment of effort; and a prospective 2-year follow-up of normal subjects to predict future low back pain.

Simple low back pain: rest or active exercise?

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Objective clinical evaluation of physical impairment in chronic low back pain

The aim of this study was to investigate physical impairment in patients with chronic low back pain, to develop a method of clinical evaluation suitable for routine use, and to consider the relationship between pain, disability, and physical impairment. Twenty-seven physical tests were investigated. Permanent anatomic and structural impairments of spinal deformities, spinal fractures, surgical scarring, and neurologic deficits were excluded as not relevant to the patient with low back pain in the absence of nerve root involvement or previous surgery. Three consecutive 20-patient reproducibility studies were used to develop reliable methods of examination for 23 of the tests. Only four tests were excluded as unreliable: sacral angle, pelvic tilt, and separate lumbar and pelvic extension, none of which are part of routine clinical examination or have any proven relationship to disability. The remaining 23 physical tests were evaluated in 70 asymptomatic subjects and 120 patients with chronic low back pain. Passive knee flexion, passive hip flexion, hip flexion strength, hip abduction strength, pain reproduction on each of these tests, and the prone extension strength test were excluded because they were too closely related to nonorganic and behavioral responses to examination. Eight tests successfully discriminated patients with low back pain from normal subjects and were significantly related to self-report disability in activities of daily living: pelvic flexion, total flexion, total extension, lateral flexion, straight leg raising, spinal tenderness, bilateral active straight leg raising, and sit-up. Factor analysis failed to demonstrate an underlying statistical dimension of physical impairment. However, an empirical combination of total flexion, total extension, average lateral flexion, average straight leg raising, spinal tenderness, bilateral active straight leg raising, and sit-up provided an equally satisfactory alternative. Simple cut-offs from normal subjects made the scale simple and quick to use. This final scale successfully discriminated 78% of patients and normal subjects and explained 25% of the variance of disability, with a specificity of 86% and sensitivity of 76%. This scale provides an objective clinical evaluation that meets the criteria for evaluating physical impairment, yet is simple, reliable, and suitable for routine clinical use. It should, however, be emphasized that all the tests included in the final scale are measures of current functional limitation rather than of permanent anatomic or structural impairment. This raises questions about the physical basis of permanent disability due to chronic low back pain.

Observation of overt pain behaviour by physicians during routine clinical examination of patients with low back pain

Observation of overt pain behaviours was carried out by physicians during routine clinical examination of 120 patients with chronic low back pain. Reliable ratings were achieved but only after very careful standardization in an additional 60 pilot patients. Overt pain behaviour was found to be related to other clinical measures of illness behaviour--pain drawing, behavioural symptoms, behavioural signs, use of walking aides and downtime--but did tap an additional dimension. It is concluded that clinical observation of overt pain behaviour can provide useful additional information about illness behaviour in low back pain. Reliable observations can be achieved in a carefully standardized research situation but in routine clinical practice are vulnerable to considerable observer error and bias.

The Distress and Risk Assessment Method. A simple patient classification to identify distress and evaluate the risk of poor outcome

The integration of physical and psychological assessment is frequently problematic. Psychological tests are often cumbersome and difficult to interpret. There would appear to be a need for a simple assessment method that would identify distress and help alert the clinician to the need for a more comprehensive assessment. The Distress and Risk Assessment Method is derived from a simple set of scales validated for use with patients with low-back pain. It offers a simple classification of patients into those showing no psychological distress, those at risk of developing major psychological overlay, and those clearly distressed. Four patient types can be identified on the basis of scores on two short questionnaires. The construction of the Distress and Risk Assessment Method is described and validity data (both clinical and psychological) are presented. The use of the Distress and Risk Assessment Method in the prediction of outcome of treatment is presented, and the paper concludes with general guidelines for its use.

Low back disability. A syndrome of Western civilization

The epidemic of low back disability is a growing concern, and a whole new approach to low back disorders is suggested. This article looks at the theoretic and conceptual framework on which any real breakthrough in treatment depends.

Clinical tests applicable to the study of chronic low-back disability

This symposium has evaluated the possible directions to be taken in designing reliable and valid questionnaires, screening examinations, and paraclinical tests applicable to studies in LBP. The detailed design of such test instruments, field testing, measures of reliability, and validity represent the next step if the current barriers to collaborative clinical research in LBP are to be overcome.