Simple low back pain: rest or active exercise?

The biopsychosocial model: Its use and abuse

The biopsychosocial model (BPSM) is increasingly influential in medical research and practice. Several philosophers and scholars of health have criticized the BPSM for lacking meaningful scientific content. This article extends those critiques by showing how the BPSM's epistemic weaknesses have led to certain problems in medical discourse. Despite its lack of content, many researchers have mistaken the BPSM for a scientific model with explanatory power. This misapprehension has placed researchers in an implicit bind. There is an expectation that applications of the BPSM will deliver insights about disease; yet the model offers no tools for producing valid (or probabilistically true) knowledge claims. I argue that many researchers have, unwittingly, responded to this predicament by developing certain patterns of specious argumentation I call "wayward BPSM discourse." The arguments of wayward discourse share a common form: They appear to deliver insights about disease gleaned through applications of the BPSM; on closer inspection, however, we find that the putative conclusions presented are actually assertions resting on question-begging arguments, appeals to authority, and conceptual errors. Through several case studies of BPSM articles and literatures, this article describes wayward discourse and its effects. Wayward discourse has introduced into medicine forms of conceptual instability that threaten to undermine various lines of research. It has also created a potentially potent vector of medicalization. Fixing these problems will likely require reimposing conceptual rigor on BPSM discourse.

Effect of Osteopathic Manipulative Treatment vs Sham Treatment on Activity Limitations in Patients With Nonspecific Subacute and Chronic Low Back Pain: A Randomized Clinical Trial

IMPORTANCE

Osteopathic manipulative treatment (OMT) is frequently offered to people with nonspecific low back pain (LBP) but never compared with sham OMT for reducing LBP-specific activity limitations.

OBJECTIVE

To compare the efficacy of standard OMT vs sham OMT for reducing LBP-specific activity limitations at 3 months in persons with nonspecific subacute or chronic LBP.

DESIGN, SETTING, AND PARTICIPANTS

This prospective, parallel-group, single-blind, single-center, sham-controlled randomized clinical trial recruited participants with nonspecific subacute or chronic LBP from a tertiary care center in France starting February 17, 2014, with follow-up completed on October 23, 2017. Participants were randomly allocated to interventions in a 1:1 ratio. Data were analyzed from March 22, 2018, to December 5, 2018.

INTERVENTIONS

Six sessions (1 every 2 weeks) of standard OMT or sham OMT delivered by nonphysician, nonphysiotherapist osteopathic practitioners.

MAIN OUTCOMES AND MEASURES

The primary end point was mean reduction in LBP-specific activity limitations at 3 months as measured by the self-administered Quebec Back Pain Disability Index (score range, 0-100). Secondary outcomes were mean reduction in LBP-specific activity limitations; mean changes in pain and health-related quality of life; number and duration of sick leaves, as well as number of LBP episodes at 12 months; and consumption of analgesics and nonsteroidal anti-inflammatory drugs at 3 and 12 months. Adverse events were self-reported at 3, 6, and 12 months.

RESULTS

Overall, 200 participants were randomly allocated to standard OMT and 200 to sham OMT, with 197 analyzed in each group; the median (range) age at inclusion was 49.8 (40.7-55.8) years, 235 of 394 (59.6%) participants were women, and 359 of 393 (91.3%) were currently working. The mean (SD) duration of the current LBP episode was 7.5 (14.2) months. Overall, 164 (83.2%) patients in the standard OMT group and 159 (80.7%) patients in the sham OMT group had the primary outcome data available at 3 months. The mean (SD) Quebec Back Pain Disability Index scores for the standard OMT group were 31.5 (14.1) at baseline and 25.3 (15.3) at 3 months, and in the sham OMT group were 27.2 (14.8) at baseline and 26.1 (15.1) at 3 months. The mean reduction in LBP-specific activity limitations at 3 months was -4.7 (95% CI, -6.6 to -2.8) and -1.3 (95% CI, -3.3 to 0.6) for the standard OMT and sham OMT groups, respectively (mean difference, -3.4; 95% CI, -6.0 to -0.7; P = .01). At 12 months, the mean difference in mean reduction in LBP-specific activity limitations was -4.3 (95% CI, -7.6 to -1.0; P = .01), and at 3 and 12 months, the mean difference in mean reduction in pain was -1.0 (95% CI, -5.5 to 3.5; P = .66) and -2.0 (95% CI, -7.2 to 3.3; P = .47), respectively. There were no statistically significant differences in other secondary outcomes. Four and 8 serious adverse events were self-reported in the standard OMT and sham OMT groups, respectively, though none was considered related to OMT.

CONCLUSIONS AND RELEVANCE

In this randomized clinical trial of patients with nonspecific subacute or chronic LBP, standard OMT had a small effect on LBP-specific activity limitations vs sham OMT. However, the clinical relevance of this effect is questionable.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT02034864.

Attributes Underlying Non-surgical Treatment Choice for People With Low Back Pain: A Systematic Mixed Studies Review

Background: The knowledge of patients’ preferences in the medical decision-making process is gaining in importance. In this article we aimed to provide an overview on the importance of attributes underlying the choice of non-surgical treatments in people with low back pain (LBP).

Methods: A systematic mixed studies review was conducted. Articles were retrieved from the search engines PubMed, ScienceDirect, and Scopus through June 21, 2018. The Mixed Methods Appraisal Tool (MMAT) was used to assess the quality of the study, and each step was performed by 2 reviewers.

Analysis: From a total of 390 articles, 13 were included in the systematic review, all of which were considered to be of good quality. Up to 40 attributes were found in studies using various methods. Effectiveness, ie, pain reduction, was the most important attribute considered by patients in their choice of treatment. This attribute was cited by 7 studies and was systematically ranked first or second in each. Other important attributes included the capacity to realize daily life activities, fit to patient’s life, and the credibility of the treatment, among others.

Discussion: Pain reduction was the most important attribute underlying patients’ choice for treatment. However, this was not the only trait, and future research is needed to determine the relative importance of the attributes.

Lag Times in Reporting Injuries, Receiving Medical Care, and Missing Work: Associations With the Length of Work Disability in Occupational Back Injuries

The aim of this study is to examine the associations between lag times following occupational low back injury and the length of work disability.

[Adapted physical activity for caregivers suffering from low back pain]

Chronic lower back pain is a common condition in caregivers. The Capucins regional rehabilitation centre in Angers supports these allied healthcare professionals through adapted physical activities.

Vertical heterophoria and postural control in nonspecific chronic low back pain

The purpose of this study was to test postural control during quiet standing in nonspecific chronic low back pain (LBP) subjects with vertical heterophoria (VH) before and after cancellation of VH; also to compare with healthy subjects with, and without VH. Fourteen subjects with LBP took part in this study. The postural performance was measured through the center of pressure displacements with a force platform while the subjects fixated on a target placed at either 40 or 200 cm, before and after VH cancellation with an appropriate prism. Their postural performance was compared to that of 14 healthy subjects with VH and 12 without VH (i.e. vertical orthophoria) studied previously in similar conditions. For LBP subjects, cancellation of VH with a prism improved postural performance. With respect to control subjects (with or without VH), the variance of speed of the center of pressure was higher, suggesting more energy was needed to stabilize their posture in quiet upright stance. Similarly to controls, LBP subjects showed higher postural sway when they were looking at a target at a far distance than at a close distance. The most important finding is that LBP subjects with VH can improve their performance after prism-cancellation of their VH. We suggest that VH reflects mild conflict between sensory and motor inputs involved in postural control i.e. a non optimal integration of the various signals. This could affect the performance of postural control and perhaps lead to pain. Nonspecific chronic back pain may results from such prolonged conflict.

Long-term return to work after a functional restoration program for chronic low-back pain patients: a prospective study

Low-back pain is a major health and socio economic problem. Functional restoration programs (FRP) have been developed to promote the socio-professional reintegration of patients with important work absenteeism. The aim of this study was to determine the long-term effectiveness of FRP in a group of 105 chronic low-back pain patients and to determine the predictive factors of return to work. One hundred-and-five chronic LBP patients with over 1 month of work absenteeism were included in a FRP. Pain, professional status, quality of life, functional disability, psychological impact, and fear and avoidance beliefs were evaluated at baseline, after 1 year and at the end of follow-up. Main effectiveness criterion was return to work. Fifty-five percent of the patients returned to work after mean follow-up time of 3.5 years, compared with 9% of the patients at work at baseline. Quality of life, functional disability, psychological factors, and fear and avoidance beliefs were all significantly improved. Three predictive factors were found: younger age at the onset of low-back pain, practice of sports, and shorter duration of sick leave at baseline. FRP show positive results in terms of return to work for chronic LBP patients with prolonged work absenteeism. Efforts should be made to propose such programs at an earlier stage of the disease.

Functional restoration programs for low back pain: a systematic review

BACKGROUND

In developed countries, chronic low back pain (LBP) is one the most common reasons for disability and work-time loss. Conventional treatments have not slowed the increasing prevalence of chronic LBP. Therefore, in a search for new solutions to the problem, functional restoration programs were developed.

OBJECTIVE

To synthesize the literature on the efficacy of functional restoration programs for LBP.

METHODS

We performed a systematic literature search of the MedLINE database using the keywords LBP, functional restoration, work-hardening program, exercise therapy, rehabilitation, aerobic, and cognitive behavioral therapy.

SYNTHESIS

The term "functional restoration" has been associated with a full-day multidisciplinary program lasting from 3 to 6 weeks. Results of most published controlled studies on the efficacy of functional restoration programs are positive regarding the return-to-work rate. Maintaining job status with the pre-injury employer is often best accomplished by the provision of suitable modified duties. Finally, results of functional restoration programs in terms of return-to-work rate probably depend strongly on the social security system of the country where the program was developed.

Chronicité, récidive et reprise du travail dans la lombalgie : facteurs communs de pronostic

OBJECTIVE

To determine the common risk factors of recurrence, chronicity and non return to work in low back pain.

MATERIAL AND METHOD

A systematic review of the literature was done by searches of Medline, Embase, Pascal, the Cochrane database and also in the unindexed literature. Keywords used were low back pain, chronic, risk factors, recurrence, predictive value of tests, prognosis, confounding factors. Studies were assessed by two readers using the ANAES (French Agency for Health Assessment) scale allowing classification into high-, moderate- and low-quality trials. The scientific evidence level of the identified risk factors depend on the methodological quality of the studies, the number of studies in agreement, the coherence of their results and their clinical relevance.

RESULTS

Fifty-four high quality studies were included. Several prognostic factors are common to the three described clinical situations. A history of low back pain (including the concept of pain severity, duration, disability, leg pain, related sickness leave and a history of spinal surgery), low level of job satisfaction and poor general health are highlighted with a strong level of evidence. Socioprofessionel and psychological factors including employment status, amount of wage, workers' compensation, and depression were found but with moderate level of evidence. Physical factors including lifting time per day and work postures were also found with moderate level of evidence.

CONCLUSION

This study confirm that several prognostic factors are commun to recurrence, chronicity and non return to work in low back pain. Early identification of these factors is important in understanding, and hopefully preventing, the recurrence or the progression to chronicity and disability in low back trouble.

Réadaptation du lombalgique à l’effort

Mediocre functional prognosis In industrialised countries, chronic low back pain is the most common cause of disability and work stoppage. Conventional treatments have not reduced the impact of chronic low back pain. Hence new solutions have been searched for. FUNCTIONAL RESTORATION PROGRAMS: These programs consist in heavy and expensive multidisciplinary treatment schedules, lasting from 3 to 6 weeks. The key concepts of these programs are acceptance of pain, treatment of the problem by the patients themselves and a progression contract. POSITIVE RESULTS: Controlled studies published on the percentage of patients returning to work are positive. Maintenance of a job-attached status to the pre-injury employer is often best accomplished by the provision of suitable modified duties. Finally, results of functional restoration programs in term of return-to-work rate probably strongly depend on the social security system of the country in which such programs have been developed.

Psychologically based occupational rehabilitation: the Pain-Disability Prevention Program

OBJECTIVES

To describe the development, implementation, and preliminary outcome of the Pain-Disability Prevention (PDP) Program. The PDP Program is a 10-week cognitive-behavioral intervention program that aims to increase daily involvement in goal-directed activity and minimize psychological barriers to activity involvement after occupational injury. Workers' Compensation Board claimants with soft tissue injuries to the back, who were still off work 6 weeks after injury and showed evidence of at least one "yellow flag," were offered participation in the PDP Program.

DESIGN

A single-group, prospective treatment outcome analysis.

PARTICIPANTS

Data from the first 104 claimants who participated in the PDP Program are summarized.

RESULTS

Participation in the PDP Program was associated with a 60% success rate, where success was defined as return to work (45%) or readiness to return to work (15%). Initial scores on measures of catastrophizing, fear of movement/reinjury, and depression afforded 92% correct classification of treatment outcome. Early treatment changes in catastrophizing and fear of movement/reinjury were also predictive of treatment outcome.

CONCLUSIONS

The findings suggest that a psychologically based activity mobilization program can be an effective means of yielding reductions in psychological risk factors for occupational disability. Challenges to program implementation, fidelity to protocol, and issues related to cost efficacy are discussed.

Formal education and back pain: a review

OBJECTIVES

To summarise the scientific evidence on the relation between educational status and measures of the frequency and the consequences of back pain and of the outcomes of interventions among back pain patients, and to outline possible mechanisms that could explain such an association if found.

DESIGN

Sixty four articles published between 1966 and 2000 that documented the association of formal education with back pain were reviewed.

MAIN RESULTS

Overall, the current available evidence points indirectly to a stronger association of low education with longer duration and/or higher recurrence of back pain than to an association with onset. The many reports of an association of low education with adverse consequences of back pain also suggest that the course of a back pain episode is less favourable among persons with low educational attainment. Mechanisms that could explain these associations include variations in behavioural and environmental risk factors by educational status, differences in occupational factors, compromised "health stock" among people with low education, differences in access to and utilisation of health services, and adaptation to stress. Although lower education was not associated with the outcomes of interventions in major studies, it is difficult, in light of the current limited available evidence, to draw firm conclusions on this association.

CONCLUSION

Scientific evidence supports the hypothesis that less well educated people are more likely to be affected by disabling back pain. Further study of this association may help advance our understanding of back pain as well as understanding of the relation between socioeconomic status and disease as a general phenomenon.

Aquatic therapy in the rehabilitation of athletic injuries

Water is the ideal environment for active physical therapy. By taking advantage of the physical properties of water, early resumption of rehabilitation is possible. An individualized program in aquatic rehabilitation requires the attending clinician to have specialized knowledge and experience in design and supervision. This article provides an overview of aquatic physical therapy and includes suggestions for the treatment of common athletic injuries.

Can it be predicted which patients with chronic low back pain should be offered tertiary rehabilitation in a functional restoration program? A search for demographic, socioeconomic, and physical predictors

STUDY DESIGN

A prospective clinical trial was conducted that involved six groups of patients with chronic low back pain selected from a large cohort (N = 816).

OBJECTIVES

To correlate pretreatment baseline variables with outcome parameters after treatment in a functional restoration program or in control programs, to identify possible factors predictive of the need for functional restoration.

SUMMARY OF BACKGROUND DATA

Since the functional restoration program was first described, research has focused on identifying patients who will or will not benefit from such a program. The value of previous studies is limited, however, because predictive factors from a control group were not "subtracted."

METHODS

Eight hundred sixteen patients with chronic low back disability were included. All had a structured medical examination, including various physical tests before participation in either a functional restoration program (n = 621) or shorter "control" outpatient programs (n = 144). A smaller group of the cohort (n = 51) had no treatment and served as a pure control group. Six groups were selected from the cohort: Three underwent an identical functional restoration program and three underwent different outpatient control programs. Several baseline demographic, physical, and socioeconomic variables were correlated to 1-year outcome parameters.

RESULTS

Age, days of sick leave, connection to the work force, and back pain intensity, were significantly correlated to success 1 year after entry into the study in all groups, no matter what kind of treatment was administered. Back muscle endurance, sports activity, activity of daily living scores, and vibrations were of importance in some outcome parameters for success after functional restoration. Smoking was positively correlated to disability pension. Days of sick leave and, in functional restoration, ability to work were the only factors that were correlative with statistics for people who withdrew.

CONCLUSIONS

Different factors can be identified as predictive of outcome in a functional restoration program, but most of these factors were also shown to predict success for shorter control outpatient programs or of no treatment.

Functional restoration for chronic low back pain. Two-year follow-up of two randomized clinical trials

STUDY DESIGN

Two randomized, prospective clinical trials involving 238 chronic low back disability patients were carried out. Results at 2-year follow-up are presented.

OBJECTIVES

To compare the clinical outcomes of a multidisciplinary functional restoration program with a nontreated control group (Project A) and with two less intensive but different training programs (Project B).

SUMMARY OF BACKGROUND DATA

The effectiveness of functional restoration programs has not been firmly established. Results from trials carried out in the United States differ from those in trials conducted in other countries. Only a few of these studies have been carried out as prospective and randomized clinical studies.

METHODS

Two hundred thirty-eight patients with chronic low back disability of at least 6 months' duration were included. There were 106 patients in project A and 132 patients in project B. Two years after completion of treatment patients were mailed a questionnaire that included questions regarding their work status, pain and disability levels, number of sick leave days, number of medical care contacts, medication use, physical activity levels, and subjective overall assessment of their "back life situation."

RESULTS

Patients in both studies were comparable at inclusion, except that patients in Project A were recruited from all of Denmark, whereas those in Project B were from the greater Copenhagen area. Thirteen patients did not report for treatment after randomization. Of the remaining 225 patients, 20 (9%) did not complete treatment. The questionnaire response rate was 94%. In Project A, those patients receiving treatment (functional restoration) reported significantly less contact with the health care system, fewer sick leave days, and a less disabled life style during the follow-up period, compared with reports of patients in the control group. Other effect parameters did not demonstrate a significant difference between the two groups. In Project B, all effect parameters reported, except leg pain and medication usage, were significantly in favor of functional restoration, compared with reports from the less intensively treated groups.

CONCLUSIONS

The functional restoration program seems effective in various parameters compared with the less intensive programs, but the differences in outcome in the two parallel studies indicate the necessity of testing a treatment program in different settings, in that the statistical variation may be a major factor in results of different studies.

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.

Compensation neurosis: financial reward for illness as nocebo

Results of medical treatment are notoriously poor in patients with pending litigation after personal injury or disability claims, and for those covered by workers' compensation programs. Although some instances of overt malingering are documented by surveillance videos, most exaggerated illness behavior in compensation situations takes place because of a combination of suggestion, somatization, and rationalization. A distorted sense of justice, victim status, and entitlement may further the exaggerated sick role. Adversarial administrative and legal systems challenging the claimant to prove repeatedly he or she is permanently ill harden the conviction of illness and the individual's defense of the claim. Unfortunately, after advocating for one's injury before a sometimes doubting public for the several years required to resolve such claims, care eliciting behavior too often remains permanent. Because any improvement in the claimant's health condition may result in denial of disability status in the future, the claimant is compelled to guard against getting well and is left with no honorable way to recover from illness. Financial reward for illness thus functions as a powerful nocebo, a nonspecific force creating and exacerbating illness. Solutions require recognition that judging disability and work incapacity in others is an unscientific process and that adversarial systems rewarding permanent illness or injury, particularly self reported pain, are often permanently harmful. The remainder of the solution must be political.

Predicting long-term functional limitations among back pain patients in primary care settings

To identify predictors of back-related long-term functional limitations, 1213 adult enrollees of a Health Maintenance Organization (HMO) in Washington state were interviewed about a month after a consultation for back pain in a primary care setting in 1989-1990, and followed each year thereafter. Out of 100 factors documented at the one-month assessment, measures of somatization, depression, functional limitations, and pain were the strongest predictors of two-year modified Roland-Morris score among a random subsample of 569 subjects. A multiple regression model containing the Symptom Checklist Depression and Somatization scores, the one-month modified Roland-Morris score and the number of pain days in the past six months explained about 30% of the variance in the outcome. Using recursive partitioning, a very simple model was developed to identify patients at high risk of sustaining long-term significant functional limitations. The regression model and the recursive partitioning model were successfully tested in a fresh sample of patients (n = 644). Clinical application of the recursive partitioning model and methodological aspects of this study are discussed.

Functional restoration in chronic low back pain

Conventional treatments have not slowed down the ever expanding low back pain (LBP) problem. Traditional treatment has most probably contributed to the growth of the problem. Therefore, in a search for new solutions, 'functional restoration' has been devised. In connection with chronic LBP the term has been associated with a full-day program lasting from 3 to 5 weeks. It includes multidisciplinary treatment of patients in groups with intensive physical and ergonomic training, psychological pain management, back school, as well as teaching in social/work related issues. The key concepts are 'acceptance of the pain', 'activity', 'self-responsibility', 'multidisciplinary' and 'quantitative functional evaluation (QFE)'. The latter is aimed so that the participants can feel the physical improvement, encouraging them to be able to go back to work, or at least to lead a more active life style. Several controlled studies suggest a lasting effect in terms of regaining their ability to work and improving pain behavior for a good part of disabled chronic LBP patients. However, it is noteworthy that randomized studies seemingly show poorer results than studies not employing randomized controls.

The causality field (extrinsic and intrinsic factors) in industrial subacute low back pain patients

In a prospective, randomized study, primarily designed to test the efficacy of activation on consecutive blue-collar workers sick-listed for 6 weeks due to subacute low back pain, 25% of the workers were excluded for medical reasons. In the intervention study (n = 103), only a minority of cases (6%) had 'true' subacute complaints, i.e. no prior history of low back pain. Subjective reports on general well-being, health status and work-related ergonomic factors were significantly lower or worse in patients than in reference samples. The randomized intervention study could establish a significant effect of graded activation on work return, but the effect seemed to be restricted to patients moderately disabled, i.e. one-third of the subacute low back pain patients included. A predictive four-factor model on work return increased the possibility of identifing nonresponders (chronic low back pain) more than threefold with a specificity (91%) and sensitivity (74%) comparable to that of clinical disc herniation. The history of a prolonged disablement process, cognitive factors, pain behavior and mentally straining ergonomic factors seemed to be of importance. Psychological reactions, or 'barriers to recovery', were slightly different in treatment and control groups but the type of intervention did not significantly alter the predictive model, suggesting that subsets of the study sample may benefit from other optional functional approaches. Descriptive characteristics of the study sample emphasized that subacute low back pain patients cannot be conceptualized as a homogeneous group. Four sub-groups could be identified: (a) specific medical disorders; (b) spontaneous recovery group; (c) moderately disabled back pain patients; and (d) nonresponders. The results support proposals that treatment should be tailored according to individual needs and that better case management should have priority for those belonging to the nonresponder group.

General practitioners' management of acute back pain: a survey of reported practice compared with clinical guidelines

OBJECTIVE

To compare general practitioners' reported management of acute back pain with 'evidence based' guidelines for its management.

DESIGN

Confidential postal questionnaire.

SETTING

One health district in the South and West region.

SUBJECTS

236 general practitioners; 166 (70%) responded.

OUTCOME MEASURES

Examination routinely performed, 'danger' symptoms and signs warranting urgent referral, advice given, and satisfaction with management.

RESULTS

A minority of general practitioners do not examine reflexes routinely (27%, 95% confidence interval 20% to 34%), and a majority do not examine routinely for muscle weakness or sensation. Although most would refer patients with danger signs, some would not seek urgent advice for saddle anaesthesia (6%, 3% to 11%), extensor plantar response (45%, 37% to 53%), or neurological signs at multiple levels (15%, 10% to 21%). A minority do not give advice about back exercises (42%, 34% to 49%), fitness (34%, 26% to 41%), or everyday activities. A minority performed manipulation (20%) or acupuncture (6%). One third rated their satisfaction with management of back pain as 4 out of 10 or less.

CONCLUSIONS

The management of back pain by general practitioners does not match the guidelines, but there is little evidence from general practice for many of the recommendations, including routine examination, activity modification, educational advice, and back exercises. General practitioners need to be more aware of danger symptoms and of the benefits of early mobilisation and possibly of manipulation for persisting symptoms. Guidelines should reference each recommendation and discuss study methodology and the setting of evidence.

Randomized controlled trials in industrial low back pain relating to return to work. Part 1. Acute interventions

Employers and insurers are interested in being able to use cost-effective interventions for returning injured workers to the workplace. Unfortunately, truly objective information is lacking. The purpose of this and two subsequent review articles was to perform thorough scrutiny and methodologic comparison among all obtainable, published randomized and controlled studies on low back pain (LBP) interventions leading to return to work. The study was confined to English language articles published from 1975 through 1993. Of more than 4,000 LBP citations, more than 500 were chosen for review. Of that number, 35 articles met the selection criteria of randomization, reasonable controls, and work return comparisons. This paper focuses on the 10 articles relating to interventions for acute (less than 4 weeks) LBP, and considers bed rest, exercise, spinal manipulation, back school, and case management. A 26-point quality system was used to compare the methodologic rigor of each article. This literature survey demonstrated the meager scientific foundations on which our industrial rehabilitation programs are based.

A cost-of-illness study of back pain in The Netherlands

In this study we estimated the costs of back pain to society in The Netherlands in 1991 to be 1.7% of the GNP. The results also show that musculoskeletal diseases are the fifth most expensive disease category regarding hospital care, and the most expensive regarding work absenteeism and disablement. One-third of the hospital care costs and one-half of the costs of absenteeism and disablement due to musculoskeletal disease were due to back pain. The total direct medical costs of back pain were estimated at US$367.6 million. The total costs of hospital care due to back pain constituted the largest part of the direct medical costs and were estimated at US$200 million. The mean costs of hospital care for back pain per case were US$3856 for an inpatient and US$199 for an outpatient. The total indirect costs of back pain for the entire labour force in The Netherlands in 1991 were estimated at US$4.6 billion; US$3.1 billion was due to absenteeism and US$1.5 billion to disablement. The mean costs per case of absenteeism and disablement due to back pain were US$4622 and US$9493, respectively. The indirect costs constituted 93% of the total costs of back pain, the direct medical costs contributed only 7%. It is therefore concluded that back pain is not only a major medical problem but also a major economical problem.

Rheumatology

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