Neglected topics in the treatment of chronic pain patients--relapse, noncompliance, and adherence enhancement

Advancing the science of symptom management

Since the publication of the original Symptom Management Model (Larson et al. 1994), faculty and students at the University of California, San Francisco (UCSF) School of Nursing Centre for System Management have tested this model in research studies and expanded the model through collegial discussions and seminars.

AIM

In this paper, we describe the evidence-based revised conceptual model, the three dimensions of the model, and the areas where further research is needed.

BACKGROUND/RATIONALE

The experience of symptoms, minor to severe, prompts millions of patients to visit their healthcare providers each year. Symptoms not only create distress, but also disrupt social functioning. The management of symptoms and their resulting outcomes often become the responsibility of the patient and his or her family members. Healthcare providers have difficulty developing symptom management strategies that can be applied across acute and home-care settings because few models of symptom management have been tested empirically. To date, the majority of research on symptoms was directed toward studying a single symptom, such as pain or fatigue, or toward evaluating associated symptoms, such as depression and sleep disturbance. While this approach has advanced our understanding of some symptoms, we offer a generic symptom management model to provide direction for selecting clinical interventions, informing research, and bridging an array of symptoms associated with a variety of diseases and conditions. Finally, a broadly-based symptom management model allows the integration of science from other fields.

Pain management program follow-ups. a national survey of current practice in the United Kingdom

In the United Kingdom (UK), the number of multidisciplinary pain management programs (PMP) has sharply increased in the last decade. Treatment aims to effect long-term changes, yet arrangements for evaluating long-term treatment outcome in routine practice remain unknown. All PMPs identified in the UK were invited to provide information by mailed questionnaire on aspects of follow-up evaluation. Sixty-six of 70 PMPs identified were successfully contacted (94% response rate). Ten of 48 PMPs (21%) provided complete data and met suggested criteria for adequate length and rates of follow-up, and outcome measurement. Levels of staffing and content explained only a proportion of the variability seen. A general commitment to follow-up outcome evaluation by PMPs was identified but there was substantial variability among programs in length of follow-up, attendance rates, and outcome measurement. These findings raise issues about the consistency of follow-up evaluation across the UK and the ability of current arrangements in some PMPs to accurately determine the longer-term outcome of chronic pain patients. Incorporating follow-ups into existing desirable criteria and agreeing on core outcome measures are two options available to service providers.

Outcomes of pain center treatment in Washington State workers' compensation

BACKGROUND

Injured workers with chronic pain who have failed conventional therapies often receive treatment at pain centers. This study evaluated the effect of pain center treatment on time loss status of Washington State injured workers. The primary hypothesis was that treatment at a pain center would lead to a reduction in the probability of a worker's receiving time loss benefits at a 2-year follow-up.

METHODS

A population-based retrospective cohort study was performed on 2,032 Washington State workers' compensation patients who underwent pain center evaluations. Subjects who received pain center treatment were compared to those who were evaluated but not treated with respect to time loss status at 2-year follow-up.

RESULTS

Univariate analysis revealed that at 2-year follow-up, 35% of treated subjects were receiving time loss payments vs. 40% of evaluated only subjects (P < 0.05). Subjects who were younger, female, and less chronic were more likely to undergo pain center treatment and were less likely to be on time loss at 2-year follow-up. In multivariate analyses, which statistically controlled baseline differences between the two groups, there was no difference between treated subjects and evaluated only subjects.

CONCLUSIONS

There was no evidence that pain center treatment alters 2-year time loss status of already disabled workers.

Predicting completion of a cognitive-behavioral pain management program by initial measures of a chronic pain patient' s readiness for change

OBJECTIVE

There is a need to identify pretreatment patient indicators, which are predictive of the successful enrollment and completion of chronic pain treatment programs. Recent evidence suggests the Pain Stages of Change Questionnaire can predict enrollment and completion of a 10-session cognitive-behavioral pain management program. The purpose of this study is to determine whether the pretreatment Stages of Change Questionnaire can predict patients who would complete a cognitive-behavioral pain treatment program.

DESIGN

Prospective cohort study using logistic regression analyses.

SETTINGS

Patients referred for a 10-session cognitive-behavioral treatment program at a tertiary care multidisciplinary pain clinic or a community-based specialty clinic.

SUBJECTS

Three hundred chronic pain patients (151 in the tertiary setting and 149 in the community-based setting) participated, with 147 of the patients (49%) completing and 153 (51%) patients not completing the 10-session program.

INTERVENTION

Ten-visit cognitive-behavioral program for chronic pain patients.

OUTCOME MEASURE

Completion of program.

RESULTS

The Stages of Change Questionnaire scores could predict completion status chi2 (N = 300, 2 df) = 39.7, p <0.001, (goodness-of-fit test chi2 = 5.69, p = 0.68). Those patients completing the program were slightly older and reported higher levels of pain, depression, and disability than did those patients who did not complete. Low "Precontemplation" score remained the best single predictor, as it identified correctly 61% of the cases patients who completed the program and predicted who would drop out in 65% of the cases.

CONCLUSION

The Stages of Change Questionnaire is a potentially useful tool; however, the current scoring method is insufficient to recommend its use as an inclusion or exclusion criterion for enrollment in a cognitive-behavioral program.

Assessing the needs of patients in pain: a matter of opinion?

STUDY DESIGN

A prospective cohort study including patients with nonspecific spinal pain was performed.

OBJECTIVES

To investigate whether the use of expert judgment in routine practice can provide a basis for reliable decision making concerning the need for intervention in patients with spinal pain and their ability to benefit from treatment.

SUMMARY OF BACKGROUND DATA

A wide range of instruments and techniques are used to assess and treat patients with spinal pain. Many instruments are used without being clinimetrically tested.

METHODS

A questionnaire concerning the patients' need of treatment and their potential to assimilate it was sent to experts in the health care arena: physicians, physical therapists, social insurance officers. The experts included were those connected with patients participating in a larger outcome study. Two cohorts of patients (sample 1, n = 217; sample 2, n = 257) were followed for 6 and 12 months, during which time the patients' health and work status were mapped.

RESULTS

No acceptable agreement was found between any of the experts' ratings of patients' needs and potential for rehabilitation. Logistic regression showed that the experts' judgments were based almost solely on the age of the patient. The prediction analyses showed that the most consistent predictor of the patients' status at the 6-month follow-up assessment was the patients' own belief in the existence of effective treatments and their perceived ability for learning to cope with the condition.

CONCLUSIONS

Expert judgment as exercised in routine practice cannot be used as basis for reliable decision making concerning the need of the patient with spinal pain for intervention and the patient's ability to benefit from treatment.

Further evaluation of the pain stages of change questionnaire: is the transtheoretical model of change useful for patients with chronic pain?

Patient readiness to adopt new beliefs and coping responses to pain may predict response to multidisciplinary or cognitive-behavioral pain treatments that emphasize changes in beliefs and coping behaviors. According to the transtheoretical model of change, individuals go through specific stages in the process of changing maladaptive behaviors. Based on this model, Kerns et al. (1997) (Kerns RD, Rosenberg R, Jamison RN, Caudill MA, Haythornthwaite J. Readiness to adopt a self-management approach to chronic pain: the Pain Stages of Change Questionnaire (PSOCQ). Pain 1997;72:227-234) developed a measure of readiness to adopt a self-management approach to pain problems (the Pain Stages of Change Questionnaire; PSOCQ) and provided preliminary data supporting the validity of the measure. The current study sought to further evaluate the PSOCQ by determining the generalizability of these preliminary findings and the ability of the PSOCQ to classify persons with chronic pain into specific stages of readiness to self-manage pain. One hundred ten patients with diverse chronic pain problems, and 119 patients with fibromyalgia completed the PSOCQ and two measures of pain-related beliefs and coping prior to entry into two separate multidisciplinary pain programs. The internal consistency and concurrent validity of the PSOCQ subscales were largely replicated, supporting the validity of the subscales as measures of readiness to self-manage pain. However, the PSOCQ demonstrated less utility as a tool for classifying individuals into one of four specific stages of readiness to adopt a self-management approach. This result may be due to the classification procedure used in the current study, the characteristics of the samples in the study, specific limitations of the measure, and/or limitations in the applicability of the transtheoretical model of change to patients with chronic pain.

EMDR: a new treatment for trauma and chronic pain

EMDR (eye movement desensitization and reprocessing) is a new psychological treatment for trauma that is capable of facilitating rapid and permanent reduction in distressing thoughts and feelings (Carlson et al. 1998,Wilson et al. 1995). In addition to reduction of psychological distress, the method leads to more adaptive attitudes and functioning. The utility of the method also appears to extend beyond trauma with positive results reported in the treatment of addictions, phobias, and pain (Henry 1996, Goldstein & Feske 1994, Grant 1986). As a treatment for pain EMDR offers a method of facilitating permanent changes in how pain is experienced somatically and emotionally. Knowledge and understanding of the principles underlying EMDR can also provide a guide for more effective interventions by pain specialists.

Mind-body medicine in rheumatologic disease

Research over the last 20 years in Mind-Body Medicine has made significant contributions to the treatment of rheumatic disease. This approach is based on the concept that patients have the ability to influence their experience of illness through directed modification of their thoughts, emotions, and behaviors. This article finds that Mind-Body treatment results in significant, incremental symptom relief and improvement in disability status and well-being beyond that achieved through routine medical care. There is also evidence that these interventions reduce utilization of health care services, despite continuing progression of disease, a finding that has major economic implications for health policy.

Predicting responses to self-management treatments for chronic pain: application of the pain stages of change model

Psychological treatments emphasizing a self-management approach have become commonly accepted alternatives to medical interventions for chronic pain. Unfortunately, these approaches often fail to engage a significant portion of targeted individuals and are associated with high drop-out and relapse rates. Informed by the transtheoretical model of behavior change and the cognitive behavioral perspective on chronic pain, the Pain Stages of Change Questionnaire (PSOCQ) was developed to assess readiness to adopt a self-management approach to chronic pain. Initial studies supported the reliability and validity of four distinct scales, Precontemplation, Contemplation, Action and Maintenance. The current study was designed to assess the ability of the PSOCQ to predict self-management participation and outcome. The PSOCQ and several relevant outcome measures were assessed before and after self-management treatment by 109 chronic pain patients. Profile analysis revealed that treatment completers and non-completers differed significantly across the four PSOCQ scales. Post-hoc comparisons indicated that pretreatment PSOCQ Precontemplation and Contemplation scores discriminated these two groups. Separate analyses revealed that Action and Maintenance scores increased over the course of treatment, and that changes in the PSOCQ scales were associated with improved outcomes. These findings suggest that increased commitment to a self-management approach to chronic pain may serve as a mediator or moderator of successful treatment. This study supports the predictive validity and utility of the PSOCQ, as well as the relevance of the stages of change model to self-management of chronic pain.

The effect of a Mensendieck exercise program as secondary prophylaxis for recurrent low back pain. A randomized, controlled trial with 12-month follow-up

STUDY DESIGN

A prospective, randomized, controlled trial with a stratification block design in which a Mensendieck exercise program was compared with the experience of a control group.

OBJECTIVE

To evaluate the effect of a Mensendieck program on the incidence of recurrent episodes of low back pain in patients with a history of the condition who currently are working.

SUMMARY OF BACKGROUND DATA

One episode of low back pain increases the risk of further episodes of the condition. The Mensendieck approach combines education and exercise. This approach has been used for many years in Scandinavia and the Netherlands. However, the effects on low back pain have not been evaluated previously in a randomized, controlled trial.

METHODS

A total of 77 men and women, mean age 39.6 years (range, 21.2-49.8 years), who had finished treatment for a low back pain episode, were stratified according to incidence of low back pain episodes and symptoms of sciatica over the preceding 3 years. The patients were assigned at random to either the Mensendieck program or a control group. The Mensendieck group received 20 group sessions of exercises and ergonomic education in 13 weeks. At 5- and 12-month follow-up examinations, the patients were assessed for recurrence of low back pain, days of sick leave, low back pain, and functional scores.

RESULTS

After 12 months, there was a significant reduction in recurrent low back pain episodes in the Mensendieck group compared with the control group (P < 0.05). There was a trend toward fewer days of sick leave because of low back pain in the Mensendieck group, but no significant differences between the groups. There was reduction in pain and improvement in function in both groups, with no significant differences between the groups.

CONCLUSIONS

A secondary prophylaxis Mensendieck exercise program of 20 group sessions significantly reduced the incidence of low back pain recurrences in a population with history of the condition. However, there were no differences between the groups with regard to days of sick leave, low back pain, and function.

When there is no benchmark: designing a primary care-based chronic pain management program from the scientific basis up

Managed care has been accused of ignoring the patient with pain. The challenge for a health maintenance organization (HMO) was not just how to deliver state-of-the-art care, but how to deliver it to the 40,000 members who experience chronic pain at a reasonable cost and with enduring outcomes. This article describes how one managed care organization set about improving the care of patients with chronic pain. The article includes the design process, the model implemented, and some suggestions for transfer of this technology to others who might want to explore developing a similar model.

Chronic pain management in a health maintenance organization

OBJECTIVE

The purpose of this study is to investigate the management of chronic pain in a large health maintenance organization using cognitive-behavioral techniques and a blinded control group.

DESIGN

Subjects were randomized into two groups. All participants completed a self-administered baseline questionnaire and were mailed a self-administered 6-month follow-up questionnaire.

SETTING

This study examines chronic pain management in a large, established health maintenance organization.

PATIENTS

Patients were members of a health maintenance organization, had pain for at least 6 months, and had failed all known treatment regimens.

INTERVENTIONS

The treatment group participated in a 16-hour, 8-week class teaching cognitive-behavioral techniques, the relaxation response, meditation, and stress management. The minimal treatment group received a home-study manual.

OUTCOME MEASURES

Behavioral outcomes, function, and pain severity and also patient satisfaction were measured.

RESULTS

Both the treatment and minimal treatment groups exhibited improvement in pain severity, negative mood, pain affect, and pain interference with the patient's life.

CONCLUSION

Gains were achieved in pain severity, negative mood, pain affect, self-control, and pain interference with the patient's life. Other behavioral variables and activity did not improve. Except in self-control, pain affect, and distracting responses from their significant others, the blinded minimal treatment group demonstrated similar findings. Patient satisfaction with treatment strongly favored the treatment group with over 78% of the treatment participants satisfied with the care provided.

Predicting treatment compliance following facial pain evaluation

The purpose of this study was to document compliance to treatment follow-up for facial pain patients referred for outside services. In addition, we generated a multidimensional model of the psychosocial constructs associated with chronic pain to determine whether these factors were predictive of compliance across recommended therapy modalities or with an overall measure of compliance. These constructs included pain report, depressive symptoms, anxiety, cognitive coping strategies, and physical activity reduction. The sample consisted of 80 facial pain patients evaluated at a tertiary care, facial pain clinic at a large university medical center. Compliance ratings ranged from 93% to 50% and are consistent with the literature that indicates that compliance differs across treatment modality. Furthermore, compliance rates were lower for the more nontraditional facial pain treatments performed by physical therapists or psychologists. Depression was negatively associated with compliance to medication changes, therapeutic injections, and splint therapy, but not psychological counseling or physical therapy. Increased pain was only associated with physical therapy. Measures of psychological distress (depression and anxiety) and pain were predictive of the overall measure of compliance. These results suggest that psychological distress can be a barrier for positive patient outcomes through reduced treatment compliance.

Anger management style and the prediction of treatment outcome among male and female chronic pain patients

Anger is a prominent emotion experienced by chronic pain patients. Anecdotes suggest that anger predicts poor outcome following multidisciplinary pain programs, but no empirical evidence documents this link. We expected that patient anger expression or suppression would predict poor outcome following a pain program and that gender differences would emerge. Pre- to posttreatment measures of lifting capacity, walking endurance, depression, pain severity and activity level were collected from 101 chronic pain patients. An 'anger expression x gender' interaction was found such that anger expression among males was correlated negatively with lifting capacity improvements. 'Anger suppression x gender' interactions emerged such that anger suppression among males was correlated negatively with improvements in depression and general activities. These effects remained significant after controlling for trait anger. Thus, how anger is managed may exert unique influence on outcomes apart from the effects of mere anger proneness, at least among male pain patients.

Perceived efficacy of pain clinics in the rehabilitation of injured workers

OBJECTIVE

To assess the perceived efficacy of pain clinics in the rehabilitation of injured workers among four groups of professionals.

DESIGN

A questionnaire was given to 351 subjects representing four professional groups: physicians, vocational rehabilitation counselors, staff at pain clinics, and employees of a workers compensation program. Subjects rated the effectiveness of pain clinics in eight specific functions, estimated the percentage of workers who return to work after pain clinic treatment, and indicated how soon after injury a worker should be referred to a pain clinic.

RESULTS

Pain clinic staff consistently gave the most favorable ratings and workers compensation employees the least favorable ones. There was good agreement across professional groups regarding the need for early referral of injured workers to pain clinics and the specific functions that pain clinics carry out relatively well. Clinics were ranked as most effective in reducing workers' use of opiates, and as least effective in reducing workers' pain. Return-to-work estimates varied significantly across professional groups. Within professional groups, subjects with high estimates gave more favorable overall ratings to pain clinics.

CONCLUSIONS

The results provide a profile of the perceived effectiveness of pain clinics in various functions and highlight the importance of getting accurate information about return to work rates following pain clinic treatment. They suggest that workers are not referred to pain clinics early enough.

Social cognitive and physical health determinants of exercise adherence for HIV-1 seropositive, early symptomatic men and women

This study examined social cognitive and physical health factors that might explain variations in exercise adherence in a 3-month supervised exercise intervention for a group of mildly symptomatic, HIV-1 seropositive men and women. The social cognitive predictor variables were outcome expectations and self-efficacy. The physical health predictor variables included CD4+ cell counts, self-report inventories of physical symptoms, and physicians' examinations. Self-report inventories of physical symptoms were associated with physicians' examinations and combined into a composite measure of physical health. Criterion variables included exercise adherence rates, VO2max change, and status as a 'remainder' versus 'drop-out.' The composite measure of physical health emerged as a significant predictor of adherence rate and gave perfect prediction of remainers and a moderate prediction of dropouts. No significant associations were observed between the social cognitive predictors and adherence. Results suggest that for this population physical health status is a better predictor of exercise adherence than either perceived self-efficacy or outcome expectancy.

Combined exercise and motivation program: effect on the compliance and level of disability of patients with chronic low back pain: a randomized controlled trial

OBJECTIVE

To assess the effect of a combined exercise and motivation program on the compliance and level of disability of patients with chronic and recurrent low back pain.

DESIGN

A double-blind prospective randomized controlled trial.

SETTING

Physical therapy outpatient department, tertiary care.

PATIENTS

Ninety-three low back pain patients were randomly assigned to either a standard exercise program (n = 49) or a combined exercise and motivation program (n = 44).

INTERVENTIONS

Patients were prescribed 10 physical therapy sessions and were advised to continue exercising after treatment termination. The motivation program consisted of five compliance-enhancing interventions. Follow-up assessments were performed at 3 1/2 weeks, 4 months, and 12 months.

MAIN OUTCOME MEASURES

Disability (low back outcome score), pain intensity, physical impairment (modified Waddell score, fingertip-to-floor distance, abdominal muscle strength), working ability, motivation, and compliance.

RESULTS

The patients in the motivation group were significantly more likely to attend their exercise therapy appointments (p = .0005). Four and 12 months after study entry there was a significant difference in favor of the motivation group with regard to the disability score (p = .004) and pain intensity (p < or = .026). At 4 months, there was a significant advantage for the motivation group in the fingertip-to-floor distance (p = .01) and in abdominal muscle strength (p = .018). No significant differences were found in motivation scores, self-reported compliance with long-term exercise, and modified Waddell score. In terms of working ability, there was a trend favoring the combined exercise and motivation program.

CONCLUSION

The combined exercise and motivation program increased the rate of attendance at scheduled physical therapy sessions, ie, short-term compliance, and reduced disability and pain levels by the 12-month follow-up. However, there was no difference between the motivation and control groups with regard to long-term exercise compliance.

Rehabilitation of chronic low back pain using continuous epidural analgesia

PURPOSE

Physical rehabilitation is one of the major forms of treatment of chronic low back pain. The ability of some patients to cooperate is limited by pain. Since 1992 continuous epidural analgesia has been combined with a physical rehabilitation programme for patients with chronic low back pain who have been unable to make progress with conventional physical rehabilitation due to severity of pain.

METHOD

This study reports a series of 46 consecutive patients with chronic back pain admitted over a 6 month period to a 5-day inpatient rehabilitation programme. A lumbar epidural catheter was inserted and bupivacaine 0.125% was infused at a rate that produced analgesia without sensory or motor deficit over a period of 5 days. An intensive mobilizing physiotherapy programme was instituted. Physical and psychological parameters were measured on day 1, after 1 week, after 1 month and after 1 year.

RESULTS

Time to complete a 50 m walk, time from sitting to standing, and spinal flexion were improved at 1 week and 1 month, but only time to complete the walk remained improved at 1 year. In Goldberg's General Health Questionnaire 28 scores were improved for social dysfunction, somatic symptoms, anxiety and insomnia, and depression, at 1 week and 1 month but only social dysfunction remained improved at 1 year. Using a Visual Analogue Scale pain ratings were unaltered after 1 year.

CONCLUSION

Continuous 5 day epidural analgesia combined with intensive physiotherapy may offer a means of initial rehabilitation of chronic low back pain. The initial benefit was most marked at 1 week, with benefit still evident after 1 month. However, the benefit decreased with time. This technique may be of value as part of a more comprehensive programme of physical and psychological rehabilitation.

Constructions of chronic illness

Interest in chronic illnesses is an area for research and writing is increasing across a diverse range of disciplines. Initially of interest to medicine, chronic illness is now studied by social scientists, psychologists and health professions (for example, nurses). Predominantly, the individuals affected by particular chronic illnesses have been the central interest in the body of work relating to chronic illness. The physical, psychological and social effects of chronic illness feature as major emphases for distinguishing individual variations from the 'norm'. By exploring current constructions of the major perspectives of chronic illness discourses of normalisation, individualism and science are revealed as privileged and dominant in nursing practice.

Cognitive aspects of pain and pain control

The cognitive and cognitive-behavioral approaches have been shown to be very effective in controlling pain and its sequelae both in the laboratory and in the clinical setting. As used in most research and treatment, cognitive approaches are concerned with the way the person perceives, interprets, and relates to his or her pain rather than with the elimination of the pain per se. This article reviews some of the origins of cognitive theory and pain theory, as well as examples of the techniques used and the research support for the approach. Special emphasis is given to self-efficacy, perceived control, and stress inoculation therapy. There is also discussion of some of the limitations of the cognitive approach. The overall conclusion is that the cognitive approach is a powerful and effective one for pain control despite its limitations.

Bridging the gap: support groups do not enhance long-term outcome in chronic back pain

OBJECTIVE

Because back pain patients often relapse within months of treatment, the effects of two types of support groups as a complement to usual medical treatment was investigated on long-term outcome.

DESIGN

Regular treatment was compared with an "educational" support group and a professional support group before and 1 year after intervention in a randomized controlled trial.

PATIENTS

A total of 76 women and 27 men, average age of 50 years and with an accumulated sick leave for musculoskeletal pain of 2-24 weeks during the past year, were randomly assigned to the three groups.

OUTCOME MEASURES

Sick leave records were obtained from the National Insurance Authority. A battery of standardized instruments was employed, which featured the Sickness Impact Profile, the Coping Strategies Questionnaire, the Multidimensional Pain Inventory, the Pain and Impairment Relationship Scale, the Pain and Discomfort Scale, the Pain Beliefs and Perceptions Inventory, and the Outcome Evaluation Questionnaire.

RESULTS

The Educational Support Group demonstrated greater attendance than did the Professional Support Group. However, long-term outcome was not significantly different between any of the groups for sick leave, coping, function, or experienced pain. Both support groups, relative to the Regular Treatment Group, made greater improvements on the Sickness Impact Profile.

CONCLUSION

This study provides little evidence that support groups, as a complement to regular treatment, enhance long-term outcome for subacute musculoskeletal pain problems. Specific treatment techniques, matched to the patient's needs, stringently taught, and delivered in a more compact form, may be necessary for enhancing outcome.

[Multidisciplinary treatment program on chronic low back pain, part 3. Psychosocial aspects]

PROBLEM

The majority of authors agree today that psychosocial factors have more influence on a successful treatment of chronic back pain than other variables, in particular medical findings. Therefore treatments aim to integrate psychotherapeutic intervention in order to lessen emotional impairment, to change behavioral patterns (which advocate rest and the avoidance of physical activity), and to change cognitive attitudes and fears concerning exercise and work ability. Nevertheless, the interplay of cognitive measures and disability in treatment programs still remains an unclear issue.

METHODS

Ninety disabled patients with chronic low back pain were admitted to an 8-week outpatient program of functional restoration and behavioral support. The program consisted of a pre-program (education, stretching and calisthenic exercises) and an intensive treatment period (physical exercises, back school education, cognitive behavioral group therapy, relaxation training, occupational therapy, vocational counseling), which took place for 5 weeks, 7 h a day, as an outpatient program. The targets of the psychological interventions were (a) to change maladaptive behavior (inactivity, social withdrawal) and increase the patient's activity level at home, (b) to alter maladaptive cognitions (somatization, catastrophizing, passive expectations concerning treatment) and to improve their own positive coping skills, (c) to identify and stop operant conditioned behavior, and (d) to prevent depressive symptoms and strengthen the level of emotional control. The program's philosophy encouraged the patients' active efforts to improve their functional status within a therapeutic environment that reinforced positive behavior traits conductive to getting well. The main therapeutic target was to facilitate a return to work. Apart from a medical examination and a personal interview, the patients' physical impairment, pain descriptions, and psychological distress (according to different criteria for evaluation) were also measured. This included variables such as depression, psychovegetative complaints, quality of life and workplace satisfaction, disability, and coping with disease. Measurements were repeated at the end of the 8-week program, and following 6- and 12-month intervals.

RESULTS

In comparison with the initial values, a statistically significant improvement became evident in reducing pain, disability, depression, and psychovegetative signs (P < 0.001). Nearly all results remained stable at the 6- and 12-months examinations. Apart from these results, coping measurements demonstrated little improvement in the three factorial coping dimensions. By use of regression analyses, a differentiated description of psychosocial connections became apparent in three different ways of coping (catastrophizing, searching for information, cognitive control) and parameters of disability. Disability levels corresponded poorly with pain descriptions, physical impairment and coping dimensions. This result indicates that disability should be viewed as a separate component in assessing the patients' description of low back pain.

CONCLUSION

An analysis of coping dimensions demonstrated that current cognitive measures might be too general to explain low back disability adequately. In addition, the results indicate that the use of the 'catastrophizing' factor as a separate variable is questionable, since it may simply be a symptom of depression. The relevance of coping as a sensitive parameter for change is also addressed. It is suggested that an alteration in coping strategies may be an important treatment effect, but is subject to individual prerequisites to maximize treatment response. Thus, future research must focus on the complex interactions between personality variables, environmental factors, and the coping demands posed by the specific nature of pain problems. A more lengthy evaluation of so-called 'fear-avoidance beliefs' in combination with 'disability' and coping dimensions could possibly lead to further treatment on the development of chronicity in chronic low back pain patients.

[Multidisciplinary treatment program for chronic low back pain, part 2. Somatic aspects]

PROBLEM

There is a great need to expand current knowledge of the various functional capacity measurements used in the rehabilitation of chronic low back pain (CLBP) patients. The literature on these patients reports that mobility, endurance, trunk strength and lifting capacity decrease during the process of chronicity. Chronically disabled patients appear to have lower functional capacity than asymptomatic persons.

METHODS

Our study group consisted of 90 disabled CLBP patients (44 female, 46 male; average age 42 years) who underwent a multidisciplinary 8-week daily treatment program of functional restoration with behavioral support (instruction, endurance training, strength exercises, behavioral and treatment to facilitate return to work therapy). Initially these patients where compared with 107 asymptomatic persons (44 female, 63 male, average age 41 years). The patients were investigated before and after treatment, and at intervals of 6 and 12 months. The reliability of the functional measurements was evaluated by interrater comparison. Physical assessment included a medical examination (mainly diagnosis of radicular or nonradicular pain), changes in the lumbar spine revealed by X-ray studies according to Herron and Turner, rating of physical impairment according to Waddell, flexibility, length of hamstrings muscles (SLR), test of power and endurance of trunk movement by standardized exercises according to the Swiss group of Spring and isokinetic measurements (LIDO Back), tests of lifting capacity (LIDO Lift), and (in part) of general endurance on a cycle ergometer (CASE 15 Marquette).

RESULTS

Physical findings showed that mobility was reduced substantially in patients suffering from back pain due to reduced SLR (shortened hamstrings) and decreased spinal mobility. Patients also demonstrated significant reductions in their ability to perform lifting tasks in comparison to healthy individuals. The results of trunk flexion showed no significant differences between patients and the control group, whereas the ability to perform trunk extension was much better in the control group. In principle we found the same results with isokinetic measurements as in the exercises without machines. Cardiovascular endurance was also much better in the control group than it was in the back pain patients. At the end of the treatment program all physical deficits were improved significantly. In many cases performance was comparable with that of the control group. With time, however, training effects gradually decreased. The success of treatment (return to work, absence from work, pain reduction, use of medical care) was independent of the functional status of the patients before and after treatment.

CONCLUSION

Study results showed that physical capacity in disabled patients with low back pain is substantially reduced in comparison to persons who do not suffer from back pain. The only exception was in trunk flexor strength and endurance, in which measurements did not differ between the patients and the control group. However, even CLBP- patients with long-term pain and severe physical illness can successfully improve their physical condition by participating in an active treatment program. Back extensor muscle training has to be included in physical therapy. Because of loss of condition during the time after treatment, regular monitoring of patients and their home training programs is necessary. Overall, treatment of CLBP has to include physical training and psychosocial treatment to achieve satisfactory results.

Exercise for workers with musculoskeletal pain: Does enhancing compliance decrease pain?

A low rate of compliance for exercise regimens is a difficult problem for programs aimed at treating or preventing musculoskeletal pain. In fact, the utility of exercise for common pain problems has been debated since poor compliance confounds proper program evaluation. Thus, the purpose of the present study was to evaluate the effects of a compliance enhancement measure and subsequently to assess the effects of physical activity on pain perception. Forty-eight employees (mean age=42, 20 females) currently working at two companies and who reported musculoskeletal pain, but noexercise habit voluntarily served as subjects. The Comparison Group was provided with information and free membership at a health center. The Exercise Compliance Enhancement Group met individually with a behavioral psychologist, who employed cognitive-behavioral techniques, to plan their activity program. Results showed that the Compliance Enhancement Group had a higher rate of adherence and participated in significantly more exercises over the course of 6 months than did the Comparison Group. However, analyses based on pre- and posttest gain scores showed that the differences between the groups for aerobic capacity and pain intensity were not significant. However, when compilers were compared with noncompliers, those complying with the activity program were found to have improved their aerobic capacity more than noncompliers. Yet for overall pain intensity ratings, the difference between compilers and noncompliers was still not significant. Intensity ratings made immediately before and after exercising indicated that exercise activities were related to a significant increase in pain intensity. These results indicate that compliance for exercise may be significantly improved, but the effect of exercise activities on overall pain intensity was not significant relative to the comparison group.

Inpatient vs. outpatient pain management: results of a randomised controlled trial

Inpatient and outpatient cognitive behavioural pain management programmes for mixed chronic pain patients were compared. Patients were randomly allocated to the 4 week inpatient programme or to the 8 half day per week outpatient programme, or to a waiting list control group. Staff, teaching materials, and setting were the same for the two treatment groups. Patients were assessed pre-treatment, and at 1 month after discharge, and treated patients also at 6 months and 1 year after discharge, by assessors blind to treatment group; assessments included physical, functional and psychological measures, and medication use. In total, 121 mixed chronic pain patients (mean age 50 years; mean chronicity 8.1 years) were included in the study, following medical examination to ensure that no further medical treatment was appropriate. There was no change in the control group; inpatients and outpatients, comparable before treatment, both made significant improvements in physical performance and psychological function, and reduced medication use. Inpatients made greater gains, and maintained them better at 1 year; they also used less health care than outpatients. There were no outstanding predictors of improvement other than treatment group.

Opioid therapy for chronic nonmalignant pain: clinician's perspective

During the past decade, debate has intensified about the role of long-term opioid therapy in the management of chronic nonmalignant pain. Specialists in pain management have discussed the issues extensively and now generally agree that a selected population of patients with chronic pain can attain sustained analgesia without significant adverse consequences. This perspective, however, is not uniformly accepted by pain specialists and has not been widely disseminated to other disciplines or the public. Rather, the more traditional perspective, which ascribes both transitory benefit and substantial cumulative risk to long-term opioid therapy, continues to predominate. According to this perspective, the inevitability of tolerance limits the possibility of sustained efficacy, and other pharmacological properties increase the likelihood of adverse outcomes, including persistent side-effects, impairment in physical and psychosocial functioning, and addiction. If accurate, these outcomes would indeed justify the withholding of opioid therapy for all but the most extreme cases of chronic nonmalignant pain.

Compliance: A barrier to occupational rehabilitation?

While patients' compliance with medical, psychological, and other treatments has received considerable attention the subject has received relatively little attention in the rehabilitation literature. This paper attempts to review the study of patients' compliance in the rehabilitation literature and to examine its role especially in relation to outcomes. The assessment of compliance, some of the factors affecting compliance in rehabilitation, as well as future research issues are also addressed.

An empirical investigation of the 'Biopsychosocial Disease Consequence model': psychological impairment, disability and handicap in chronic pain patients

The purpose of this study is to emphasize the meaningfulness of a global, functional rather than a narrow medical view in the efficacy evaluation of chronic pain treatment. Therefore, the 'Biopsychosocial Disease Consequence (BPSDC) model' to assess function more globally than before, is presented in this article. The model is based on two theories: (1) the biopsychosocial approach and (2) WHO's classification of impairments, disabilities and handicaps. In addition to the presentation of the conceptual model, the development of the hypothetical criteria and assessment models for psychological impairments, disabilities and handicaps, and the validity testing of the psychological assessment axis are described. Within each of the three classes, i.e. psychological impairments, disabilities and handicaps, the results supported the independence of the hypothetical criteria from each other. On the other hand, results suggested that some changes to the hypothetical assessment models for some of the criteria might be valuable. It was concluded that although the most adequate psychological assessment models for function, found in this study, can be considered as robust and recommendable as one set of tools for functional assessment, the main aim of this article is to encourage multidisciplinary team efforts to develop and systematize the assessment procedures of function in patients suffering from chronic diseases.

Analysis of long-term stress reactions in emergency room patients: An initial study

The psychological stress reactions of 44 family medicine patients who were treated in the emergency room were examined approximately a year after the event. Patients were assessed on several psychological measures, including one for posttraumatic stress disorder (PTSD), and on their perception of how stressful the event was initially and now. Results show continuing stress reactions related to the emergency room event. Three patients endorsed symptoms indicating full PTSD and 13 appeared to have at least partial PTSD. Age appeared to be a factor in the presence of stress symptoms and in degree of perceived communication with the physician.

The effects of ergonomically designed school furniture on pupils' attitudes, symptoms and behaviour

We tested the effects of implementing ergonomically designed school furniture on measures of comfort, sitting posture and symptoms. Three classes of fourth graders (10 years old) were randomly assigned either to a control group using traditional furniture or to an experimental group which received the ergonomically designed furniture. In both groups questionnaires were completed and sitting behaviour was observed twice before and after the intervention as well as at a five-month follow-up period. Although the experimental groups rated their furniture as being significantly more comfortable, differences in actual sitting behaviour were small. The experimental class experienced a reduction in musculoskeletal symptoms relative to the control group after implementing the ergonomically designed furniture. Since pupils did not automatically sit 'properly' in the ergonomic furniture, these results demonstrate the need for proper instructions and adjustment. Increased comfort and decreased symptoms may be used to motivate pupils to sit correctly. Our results suggest that furniture design is one aspect of a multidimensional problem.

The role of psychological factors in chronic pain. I. A half century of study

This review examines a half century of thought about the role of psychological factors in chronic pain. Changing views are discussed, and representative examples of pain research based on psychoanalytic, behavioural, cognitive, and psychophysiological theories are presented and evaluated. The evolution of thought from linear causal models of pain to multicausal explanations provides a conceptual framework for discussion. Studies reviewed show that an earlier concept, based on simple formulations of psychological causation, has been replaced by more comprehensive explanations comprising both physical and psychological influences. Further methodological and conceptual problems are discussed in the second paper of this 2-part review.

Opiate reduction in chronic pain patients: a comparison of patient-controlled reduction and staff controlled cocktail methods

This study compares the effectiveness of two methods of opiate reduction in 108 chronic pain patients during a 4 week inpatient pain management programme, and at 1-month and 6-month follow-up. Patients chose either the patient-controlled reduction (PCR) or cocktail reduction method, aiming to complete withdrawal by discharge. Use of opiates and other drugs was recorded, and psychological measures taken, at admission, at discharge, and at follow-ups. Patients who opted for the cocktail reduction method started at higher morphine equivalents (P < 0.001), were less confident in their ability to cope without medication (P < 0.05), and rated their everyday activities a more disrupted by pain (P < 0.05). At discharge, 89% of the cocktail group were abstinent from opiates compared with 68% of the PCR group (P < 0.05). By 1-month follow-up, the advantage of the cocktail method had disappeared, with no significant differences between the two groups in mean opiate dose, nor in the proportion of abstinent patients. This was the result of a greater return to opiate use in the cocktail group, with abstinence rates remaining unchanged in the PCR group. By 6-month follow-up, abstinence rates for the groups were equivalent, with 55% of patients remaining off opiates. By this stage, however, non-abstinent cocktail group patients were taking significantly larger doses of opiates than PCR patients (P < 0.05), although in both groups, the dose was well below admission level. Admission opiate dose level was the best predictor both of abstinence at discharge and of subsequent opiate dose level in non-abstinent patients. This study demonstrates that both reduction methods can produce substantial reduction in opiate use by severely impaired chronic pain patients with long medication histories.

Cognitive-behavioral treatment of rheumatoid arthritis pain: maintaining treatment gains

OBJECTIVE

This paper critically reviews research studies examining the long-term effects of cognitive-behavioral therapy interventions for managing pain in rheumatoid arthritis patients.

METHODS AND RESULTS

The first section of the paper evaluates long-term results obtained in studies of cognitive-behavioral therapy, arthritis education interventions, and combined cognitive-behavioral therapy-arthritis education interventions. These studies show that although some rheumatoid arthritis patients are able to maintain initial improvements in pain and disability, other rheumatoid arthritis patients do not. In the second section of this review, a cognitive-behavioral model of maintenance of pain coping skills is presented. This model may be useful in increasing our understanding of the relapse process and in planning interventions to enhance and prolong cognitive-behavioral therapy treatment gains. The final section of this paper addresses important future directions for research. The need for empirical studies of relapse and maintenance processes is underscored.

CONCLUSIONS

Controlled studies are needed to test the utility of new cognitive-behavioral interventions designed to enhance the long-term maintenance of treatment gains in RA patients. We suggest that a focus on issues of relapse and maintenance may be just as important for medical and surgical interventions for rheumatoid arthritis pain, as it is for cognitive-behavioral therapy interventions.

The experience and management of pain in rheumatological disorders

A case for studying the psychological aspects of pain is made through a discussion of the problems resulting from investigations of the so-called rheumatoid personality. Following a review of the current theory about pain mechanisms, proposals are made about the best ways of measuring pain in the rheumatological disorders. Later sections tackle issues about the many meanings of pain. Discussion particularly focuses on expectations about pain, on lay beliefs about the rheumatic diseases and on beliefs about pain control. Recommendations are made about the ways in which some of these psychological features might profitably be incorporated into the management of clinical pain.