SupportPrim-a computerized clinical decision support system for stratified care for patients with musculoskeletal pain complaints in general practice: study protocol for a randomized controlled trial

BACKGROUND

Musculoskeletal disorders represented 149 million years lived with disability world-wide in 2019 and are the main cause of years lived with disability worldwide. Current treatment recommendations are based on "one-size fits all" principle, which does not take into account the large degree of biopsychosocial heterogeneity in this group of patients. To compensate for this, we developed a stratified care computerized clinical decision support system for general practice based on patient biopsychosocial phenotypes; furthermore, we added personalized treatment recommendations based on specific patient factors to the system. In this study protocol, we describe the randomized controlled trial for evaluating the effectiveness of computerized clinical decision support system for stratified care for patients with common musculoskeletal pain complaints in general practice. The aim of this study is to test the effect of a computerized clinical decision support system for stratified care in general practice on subjective patient outcome variables compared to current care.

METHODS

We will perform a cluster-randomized controlled trial with 44 general practitioners including 748 patients seeking their general practitioner due to pain in the neck, back, shoulder, hip, knee, or multisite. The intervention group will use the computerized clinical decision support system, while the control group will provide current care for their patients. The primary outcomes assessed at 3 months are global perceived effect and clinically important improvement in function measured by the Patient-Specific Function Scale (PSFS), while secondary outcomes include change in pain intensity measured by the Numeric Rating Scale (0-10), health-related quality of life (EQ-5D), general musculoskeletal health (MSK-HQ), number of treatments, use of painkillers, sick-leave grading and duration, referral to secondary care, and use of imaging.

DISCUSSION

The use of biopsychosocial profile to stratify patients and implement it in a computerized clinical decision support system for general practitioners is a novel method of providing decision support for this patient group. The study aim to recruit patients from May 2022 to March 2023, and the first results from the study will be available late 2023.

TRIAL REGISTRATION

The trial is registered in ISRCTN 11th of May 2022: 14,067,965.

Making shouldr pin imple n gneral pactice: implementing an evidence-based guideline for shoulder pain, protocol for a hybrid design stepped-wedge cluster randomised study (EASIER study)

INTRODUCTION

Research suggests that current care for shoulder pain is not in line with the best available evidence. This project aims to assess the effectiveness, cost-effectiveness and the implementation of an evidence-based guideline for shoulder pain in general practice in Norway.

METHODS AND ANALYSIS

A stepped-wedge, cluster-randomised trial with a hybrid design assessing clinical effectiveness, cost-effectiveness and the effect of the implementation strategy of a guideline-based intervention in general practice. We will recruit at least 36 general practitioners (GPs) and randomise the time of cross-over from treatment as usual to the implemented intervention. The intervention includes an educational outreach visit to the GPs, a computerised decision tool for GPs and a self-management application for patients. We will measure outcomes at patient and GP levels using self-report questionnaires, focus group interviews and register based data. The primary outcome measure is the patient-reported Shoulder Pain and Disability Index measured at 12 weeks. Secondary outcomes include the EuroQol Quality of Life Measure (EQ5D-5L), direct and indirect costs, patient's global perceived effect of treatment outcome, Pain Self-Efficacy and Brief Illness Perception Questionnaire. We will evaluate the implementation process with focus on adherence to guideline treatment. We will do a cost-minimisation analysis based on direct and selected indirect costs and a cost-utility analysis based on EQ5D-5L. We will use mixed effect models to analyse primary and secondary outcomes.

ETHICS AND DISSEMINATION

Ethics approval was granted by the Regional Committee for Medical and Health Research Ethics-South East Norway (ref. no: 2019/104). Trial results will be submitted for publication in a peer-reviewed medical journal in accordance with Consolidated Standards of Reporting Trials.

TRIAL REGISTRATION NUMBER

NCT04806191.

Use of Dietary Supplements and Perceived Knowledge among Adults Living with Fibromyalgia in Norway: A Cross-Sectional Study

Fibromyalgia syndrome (FMS) is a complex medical condition characterized by widespread musculoskeletal pain. To date, no gold standard treatment has been developed, and persons with FMS often seek alternative methods to control their symptoms, such as dietary supplements (DS). This study aimed to describe the use of DS in persons living with FMS and examine the associations between the use of DS and its potential predictors. We recruited a convenience sample of 504 participants (≥18 years) living with FMS. The main outcome variables included estimated expenditure on DS in the last 12 months in Norwegian kroner (NOK) and the differences between the groups of users and non-users of DS. Of the 504 participants, 430 reported having used DS, and the mean amount of money spent in the previous year was determined to be NOK 2300. The most common DS reported were vitamin D, magnesium, and omega-3 fatty acids. The predictors of being a DS user were high education, high self-reported knowledge of DS but low overall knowledge of health claims. Users of DS marketed for muscles/joints appear to spend more money on DS. The increasing availability of DS and aggressive advertising in the media through health claims stipulate the need for interventions that lead to informed decisions about DS.

Spinal pain in employees exposed to abusive supervision: Evidence of a sex and CRHR1 CTC haplotype interaction

Previous findings suggest that exposure to social stress in the form of abusive supervision may increase the risk of musculoskeletal disorders. In the present study, we examined the link between abusive supervision, the CRHR1 genotype and spinal pain. The data were collected through a national survey drawn from the National Central Employee Register by Statistics Norway. A total of 1226 individuals returned both the questionnaire and the saliva kit. Abusive supervision was measured by a 5-item version of the Tepper's 2000 scale. Spinal pain was measured by 3 items (neck-, upper and low back pain). Genotyping with regard to CRHR1 rs242941, rs242939 and rs1876828 was carried out using Taqman assay, and Phase v.2.1.1 was used to define the CRHR1 allele combinations. The analyses revealed that abusive supervision was associated with spinal pain. In particular, we observed a strong effect of abusive supervision on spinal pain in female +CTC/+CTC carriers (p = 0.002). Moreover, using +CTC/+CTC as a reference, +CTC/-CTC and -CTC/-CTC both showed protective effects (p = 0.024, p = 0.002, respectively). Also, our data demonstrated a clear sex and CRHR1 CTC haplotype interaction (p = 0.013). No such gene-environment interaction was seen in men. Our data demonstrated that the CRHR1 CTC haplotype may exacerbate the effect of abusive supervision on spinal pain in female employees. Hence, the present study supports the theory that both gender and the CRHR1 genotype, may moderate the pain responses to social stressors.

Prevalence and associated factors of neck, shoulder, and low-back pains among medical students at Jazan University, Saudi Arabia: A cross-sectional study

Background

Musculoskeletal pain (MSP) in the neck, shoulder, and lower back is common widespread among medical students. The objective of this research is to estimate the prevalence of neck, shoulder, and low-back pains and to explore factors associated with MSP among medical students at Jizan University in southwest of Saudi Arabia.

Methods

A cross-sectional, self-administered questionnaire-based study was conducted among undergraduate medical students of Jazan University. A total of 440 students were selected by random sampling. Descriptive statistics, a Chi-squared test, and logistic regression were performed to examine the prevalence, associations, and predictors of MSP.

Results

The overall prevalence of MSP was (53.5%; 95% CI: 49.2-58.4). Neck pain was reported by 197 (44.8%) in the week prior to the study and by 268 (60.9%) in the year prior to the survey. Regarding shoulder pain, it was reported by 231 (52.5%) in the week prior to the study and 175 (39.8%) in the year prior to the study. Regarding low-back pain, it was reported by 147 (33.4%) in the week prior to the study and 270 (61.4%) in the year prior to the study. Factors associated with the risk of MSP include history of trauma (OR = 2.70; 95% CI: 1.36-5.36 depressive symptoms (OR = 1.94; 95% CI: 1.03-3.66) and report of psychosomatic symptoms (OR = 2.98; 95% CI: 1.71-5.18).

Conclusion

In conclusion, the proportion of medical students with MSP was very high. Factors associated with the increased risk of MSP include history of trauma, depressive, and psychosomatic symptoms. Intervention program may help improving the musculoskeletal health of the medical students and to hence their quality of life.

Association of iron status with the risk of bloodstream infections: results from the prospective population-based HUNT Study in Norway

PURPOSE

As iron is essential for both immune function and microbial growth, alterations in iron status could influence the risk of infections. We assessed the associations of iron status with risk of bloodstream infections (BSIs) and BSI mortality.

METHODS

We measured serum iron, transferrin saturation (Tsat) and total iron-binding capacity (TIBC) in 61,852 participants in the population-based HUNT2 study (1995-97). Incident BSIs (1995-2011) were identified through linkage with the Mid-Norway Sepsis Register, which includes prospectively registered information on BSI from local and regional hospitals. We assessed the risk of a first-time BSI and BSI mortality with the iron indices using Cox proportional hazards regression analysis.

RESULTS

During a median follow-up of 14.8 years, 1738 individuals experienced at least one episode of BSI, and 370 died within 30 days after a BSI. In age- and sex-adjusted analyses, BSI risk was increased among participants with indices of iron deficiency, serum iron ≤ 2.5th percentile (HR 1.72, 95% CI 1.34-2.21), Tsat ≤ 2.5th percentile (HR 1.48, 95% CI 1.12-1.96) or TIBC ≥ 97.5th percentile (HR 1.46, 95% CI 1.06-2.01). The associations remained similar after adjusting for comorbidities and exclusion of BSI related to cancer, rheumatic illnesses and inflammatory bowel disease. BSI mortality showed similar associations.

CONCLUSION

Indices of severe iron deficiency are associated with an increased risk of a future BSI.

The Prevalence of and Factors Associated with Neck, Shoulder, and Low-Back Pains among Medical Students at University Hospitals in Central Saudi Arabia

Aim

The study aim was to determine the prevalence of neck, shoulder, and low-back pains and to explore the factors associated with musculoskeletal pain (MSP) among medical students at university hospitals in central Saudi Arabia.

Method

This cross-sectional study was conducted at a government institution using an online self-administered, modified version of the Standardised Nordic Questionnaire in the English language.

Results

A total of 469 students responded to our survey. The prevalence of MSP in at least one body site at any time, in the past week, and in the past year was 85.3%, 54.4%, and 81.9%, respectively. Factors significantly associated with MSP in at least one body site at any time were being in the clinical year (P = 0.032), history of trauma (P  =  0.036), history of depressive symptoms (P < 0.001), and history of psychosomatic symptoms (P < 0.001). On multivariable regression analysis, factors associated with MSP were history of trauma (P = 0.016) and depressive (P = 0.002) or psychosomatic symptoms (P = 0.004).

Conclusion

MSP among Saudi medical students is high, particularly among those in the clinical years and those with history of trauma and with depressive or psychosomatic symptoms. Medical institutions should be aware of this serious health issue and preventive measures are warranted.

Study protocol for Norwegian Psychomotor Physiotherapy versus Cognitive Patient Education in combination with active individualized physiotherapy in patients with long-lasting musculoskeletal pain - a randomized controlled trial

Background

Norwegian Psychomotor Physiotherapy (NPMP) has been an established treatment approach for more than 50 years, although mostly in the Scandinavian countries, and is usually applied to patients with widespread and long-lasting musculoskeletal pain and/or psychosomatic disorders. Few studies have been investigating outcome of NPMP and no randomized clinical trials (RCT) have been systematically tried out on individuals.

Methods/design

This is a study protocol for a pragmatic, single blinded RCT, which will take place in a city of Norway. The participants will be block randomized either to receive NPMP or Cognitive Patient Education in combination with active individualized physiotherapy (COPE-PT). The intervention will reflect usual care and will be conducted in physiotherapy clinics by five experienced physiotherapists in each of the two treatment approaches.

Discussion

The findings of the present study may give an important contribution to our knowledge of the outcome of NPMP, on patients with long-lasting widespread musculoskeletal pain and/or pain located to the neck and shoulder region.

Trial registration

The study has been registered with ClinicalTrials.gov (June 9 th 2015, NCT02482792).

Electronic supplementary material

The online version of this article (doi:10.1186/s12891-016-1159-8) contains supplementary material, which is available to authorized users.

Decision-making in job attendance within health care--a qualitative study

BACKGROUND

Musculoskeletal complaints are considered a major cause of sickness absence, particularly in areas such as the health sector. However, little is known about the personal decision-making process for self-certified sickness absence.

AIMS

To explore female health care workers' thoughts and experiences about work attendance when experiencing musculoskeletal symptoms.

METHODS

A qualitative study using individual, semi-structured, in-depth interviews with eight female health care workers was performed. Questions were related to factors influencing the decision to attend work and decision-making when facing the dilemma of attending work when experiencing musculoskeletal symptoms. The data were analysed according to the systematic text condensation.

RESULTS

Subjects reported a high threshold before calling in sick. Self-certified sickness absence was not a strategy for coping with musculoskeletal symptoms as participants chose to be physically active and work part-time rather than taking sickness absence. Making decisions about attending work fostered conflicting norms, as women faced a dilemma between feeling guilt towards colleagues and patients and taking care of their own health.

CONCLUSIONS

The findings highlight the complexity of managing work when experiencing musculoskeletal symptoms, and the dilemmas faced by those affected. The importance of work environment factors and the fact that some women feel compelled to work part-time in order to prioritize their own health require further consideration.

Staying healthy from fibromyalgia is ongoing hard work

Fibromyalgia syndrome (FMS) is a chronic musculoskeletal pain condition. Although studies have reported that some patients can become healthy again, little is known about what they tell about their lives after having FMS. In this study, we interviewed eight Norwegian women who had all recovered from FMS about their experiences when ill and subsequently being healthy. Inspired by narrative methods, we then conducted a thematic narrative analysis. The findings indicate that although women reported that life was better than before, they also reported investing considerable effort in remaining healthy. When ill, they struggled to maintain the routines of everyday life. Being healthy again, they put great effort into avoiding illness through diet, exercise, and relaxation. In conclusion, remaining healthy requires ongoing hard work to maintain the body, as well as profound changes in everyday life. At the same time, the narratives show continuity in the informants' self-presentation as hard-working women.

Musculoskeletal disorders in Norway: prevalence of chronicity and use of primary and specialist health care services

BACKGROUND

Uncertainty exists with regards to the extent of prevalence and health care use for musculoskeletal disorders in Norway. The aim of this study was to estimate the prevalence of chronic musculoskeletal disorders and to estimate the prevalence of persons receiving primary and specialist health services for these disorders.

METHODS

We used three data-sources. First, four discrete years of the nationally representative cross-sectional Survey of Health and Living Conditions (SHLC) conducted in 2002, 2005, 2008 and 2012 by Statistics Norway. Second, we used the Norwegian Patient Registry (NPR) to estimate the proportion of the population who used specialist health services in 2012. Third, we used the national register dataset for reimbursement of primary care physicians, chiropractors and physiotherapists (KUHR) to estimate the proportion of the population attending primary care physicians, chiropractors or physiotherapists in 2012. Age- and sex-specific prevalence/utilization estimates for musculoskeletal disorders were calculated.

RESULTS

In 2012, 18% of men and 27% of women reported musculoskeletal disorders lasting for six months or more in the SHLC. Primary health care services reimbursed for musculoskeletal disorders were used by 37% of women and 30% of men. Of these 32% (women) and 26% (men) were physician contacts and between 5 and 9% physiotherapist or chiropractor or combined contact types. Corresponding numbers for specialist services were 5% in men and 7% in women, where the majority was out-patient consultations. Low back and neck pain were the most common diagnoses both in the general population and as reason for health care utilization. We found that musculoskeletal disorders increased with age, however our results showed no variation in prevalence of chronic disorders between 2002 and 2012.

CONCLUSION

Chronic musculoskeletal disorders were common in the general population, with higher prevalence among women compared to men, and increasing prevalence with age. Musculoskeletal disorders had considerable impact on the use of primary and specialist health services in Norway. The use of register data on health service utilization may be a useful source for monitoring population trends, and for estimating the burden in terms of health and health service use.

Developing Community-Based Rehabilitation Programs for Musculoskeletal Diseases in Low-Income Areas of Mexico: The Community-Based Rehabilitation for Low-Income Communities Living With Rheumatic Diseases (CONCORD) Protocol

BACKGROUND

The negative impact of musculoskeletal diseases on the physical function and quality of life of people living in developing countries is considerable. This disabling effect is even more marked in low-socioeconomic communities within developing countries. In Mexico, there is a need to create community-based rehabilitation programs for people living with musculoskeletal diseases in low-socioeconomic areas. These programs should be directed to prevent and decrease disability, accommodating the specific local culture of communities.

OBJECTIVE

The objective of this paper is to describe a research protocol designed to develop, implement, and evaluate culturally sensitive community-based rehabilitation programs aiming to decrease disability of people living with musculoskeletal diseases in two low-income Mexican communities.

METHODS

A community-based participatory research approach is proposed, including multi and transdisciplinary efforts among the community, medical anthropology, and the health sciences. The project is structured in 4 main stages: (1) situation analysis, (2) program development, (3) program implementation, and (4) program evaluation. Each stage includes the use of quantitative and qualitative methods (mixed method program).

RESULTS

So far, we obtained resources from a Mexican federal agency and completed stage one of the project at Chankom, Yucatán. We are currently receiving funding from an international agency to complete stage two at this same location. We expect that the project at Chankom will be concluded by December of 2017. On the other hand, we just started the execution of stage one at Nuevo León with funding from a Mexican federal agency. We expect to conclude the project at this site by September of 2018.

CONCLUSIONS

Using a community-based participatory research approach and a mixed method program could result in the creation of culturally sensitive community-based rehabilitation programs that promote community development and decrease the disabling effects of musculoskeletal diseases within two low-income Mexican communities.

Fatigue and depression in sick-listed chronic low back pain patients

Objective

The relationship between fatigue and pain has been investigated previously, but little is known about the prevalence of substantial fatigue in patients sick-listed for chronic low back pain (CLBP) and about how fatigue is associated with depression, pain, and long-term disability. The aims of the study were to examine the prevalence of substantial fatigue; associations between fatigue, depression, and pain; and whether fatigue predicted long-term disability.

Methods

Five hundred sixty-nine patients participating in a randomized controlled trial and sick-listed 2–10 months for LBP were included in the study. Cross-sectional analyses were conducted to investigate the prevalence and independent associations between fatigue, depression, pain, and disability, while longitudinal analyses were done to investigate the association between fatigue and long-term disability.

Results

The prevalence of substantial fatigue was 69.7%. Women reported significantly more fatigue than men (t = −3.6, df = 551; P < .001). Those with substantial fatigue had higher pain intensity (t = −3.3, df = 534; P = 0.01), more depressive symptoms (t = −10.9, df = 454; P < 0.001), and more disability (t = −7.6, df = 539; P < 0.001) than those without substantial fatigue. Musculoskeletal pain and depression were independently associated with substantial fatigue. In the longitudinal analyses, fatigue predicted long-term disability at 3, 6, and 12 months' follow-up. After pain and depression were controlled for, fatigue remained a significant predictor of disability at 6 months' follow-up.

Conclusions

The vast majority of the sick-listed CLBP patients reported substantial fatigue. Those with substantial fatigue had more pain and depressive symptoms and a significant risk of reporting more disability at 3, 6, and 12 months. Substantial fatigue is disabling in itself but also involves a risk of developing chronic fatigue syndrome and long-term disability.

Reliability and responsiveness of the Norwegian version of the Neck Disability Index

Background and aim

The Norwegian version of the Neck Disability Index (NDI) has been widely used in previous studies. To our knowledge, the test–retest reliability and responsiveness of the NDI have not been investigated. Thus, the aim of the present study was to investigate the test–retest reliability and responsiveness of the Norwegian version of the NDI in neck pain patients seen in a specialized outpatient clinic.

Methods

This study included patients referred to the neck and back outpatient clinic at Oslo University Hospital. A total of 255 patients were included in the study, of which 42 participated in the test–retest portion of the study. The intraclass correlation coefficient (ICC) was used to assess test-retest reliability. A total of 113 patients participated in the responsiveness analyses. Based on their responses on the Global Rating Scale of Change (GRS), patients were categorized into the following groups: worsened (n = 24), unchanged (n = 7) and improved (n = 62). The minimal detectable change (MDC) for the NDI was calculated. Responsiveness was assessed by constructing a Receiver Operating Characteristic curve (ROC curve) to distinguish patients who had improved or worsened from those who remained unchanged. The minimum clinically important difference (MCID) was estimated.

Results

The test–retest reliability between the baseline scores and the retest NDI scores was very good (ICC = 0.84; 95% CI 0.72–0.91). The ability of the NDI to discriminate between improved and unchanged patients (responsiveness) over time was acceptable based on the ROC curve analysis (AUC = 0.70; 95% CI 0.58–0.82). The estimated MDC for the Norwegian version of the NDI is 12.3%, and the MCID is 16.6%.

Conclusion

The Norwegian version of the NDI proved to be an instrument with good test–retest reliability and acceptable responsiveness for assessing neck pain-related disability among neck pain patients in a specialized outpatient clinic

The psychometric profile of chiropractic patients in Norway and England: using and comparing the generic versions of the STarT Back 5-item screening tool and the Bournemouth Questionnaire

Background

Musculoskeletal pain and low back pain (LBP) in particular is one of the more costly health challenges to society. The STarT Back Tool (SBT) has been developed in the UK with a view to identifying subgroups of LBP patients in order to guide more cost effective care decisions. The Bournemouth Questionnaire (BQ) is a validated multidimensional patient reported outcome measure (PROM) that is widely used in routine clinical practice settings. This study sets out to describe and compare SBT and BQ scores within and between populations of patients presenting for chiropractic care in Norway and Great Britain.

Methods

Patient demographics, BQ and the 5-item generic condition SBT data were collected from patients presenting with musculoskeletal pain to 18 Norwegian and 12 English chiropractors. Analysis of correlation between groups was achieved using a 1-way Chi2 approximation (p < 0.05).

Results

Eleven percent of Norwegian LBP patients (n = 214) and 24% of English LBP patients (n = 186) were “distressed by their condition” (SBT > 4). By comparison, Norwegian chiropractic patients are: somewhat younger, have lower BQ scores, are less distressed by the condition and score significantly lower on items relating to catastrophisation and depression than English patients. There was an apparent association between total BQ and SBT scores (correlation 0.59, p < .0001) and patients who scored higher than 45 (IQR 39–58) on BQ were more likely to respond “distressed by condition” (>4) on SBT. Furthermore, patients in “distressed by condition” SBT category who had marked the “low mood” question on SBT also had a high score on the “depression” question of BQ (>6 (IQR 4–8), correlation 0.54, p < .0001).

Conclusion

The BQ and SBT appear to identify the same subgroups in some, but not all of the measured items. It appears that unknown factors result in variations between patients seeking chiropractic care for comparable complaints in primary care in England vs Norway. Comparison of populations from Norway and UK demonstrate that extrapolating and pooling of data in relation to different populations should be done with caution, in regard to these stratification tools.

Chronic pain: One year prevalence and associated characteristics (the HUNT pain study)

Background

The reported prevalence of chronic pain ranges from 11% to 64%, and although consistently high, the calculated economic burden estimates also vary widely between studies. There is no standard way of classifying chronic pain. We have repeated measurements of pain in a longitudinal population study to improve validity ofthe case ascertainment. In this paper, associations between chronic pain and demographic characteristics, self reported health and functioning, work Incapacity and health care use were investigated in a sample from the general Norwegian population.

Methods

A random sample of 6419 participants from a population study (the HUNT 3 Study) was invited to report pain every three months during a 12 month period. Chronic pain was defined as moderate pain or more (on the SF-8 verbal rating scale) in at least three out of five consecutive measurements. Self reported health and functioning was measured by seven of the eight subscales on the SF-8 health survey (bodily pain was excluded). Health care utilisation during the past 12 months was measured by self report, and included seeing a general practitioner, seeing a medical specialist and seeing other therapists. The survey data was combined with information on income, education, disability pension awards and unemployment by Statistics Norway, which provided data from the National Education database (NUDB) and the Norwegian Labour and Welfare Administration (NAV).

Results

The total prevalence of chronic pain was 36% (95% CI34-38) among women and 25% (95% CI 22–26) among men. The prevalence increased with age, was higher among people with high BMI, and in people with low income and low educational level. Smoking was also associated with a higher prevalence of chronic pain. Subjects in the chronic pain group had a self-reported health and functioning in the range of 1–2.5 standard deviations below that of those without chronic pain. Among the chronic pain group 52% (95% CI 49–55), of participants reported having seen a medical specialist during the 12 month study period and 49%(95% CI 46–52) had seen other health professionals. The corresponding proportions for the group without chronic pain were 32% (95% CI 29–34) and 22% (95% CI 20–25), respectively. Work incapacity was strongly associated with chronic pain: compared with those not having chronic pain, the probability of being a receiver of disability pension was four times higher for those with chronic pain and the probability of being unemployed was twice has high for those with chronic pain. The population attributable fraction (PAF) suggested that 49% (95% CI 42–54) of the disability pension awards and 20% (13–27) of the unemployment were attributable to chronic pain.

Conclusion and implications

Chronic pain is a major challenge for authorities and health care providers both on a national, regional and local level and it is an open question how the problem can best be dealt with. However, a better integration of the various treatments and an adequate availability of multidisciplinary treatment seem to be important.

The medically unexplained revisited

Medicine is facing wide-ranging challenges concerning the so-called medically unexplained disorders. The epidemiology is confusing, different medical specialties claim ownership of their unexplained territory and the unexplained conditions are themselves promoted through a highly complicated and sophisticated use of language. Confronting the outcome, i.e. numerous medical acronyms, we reflect upon principles of systematizing, contextual and social considerations and ways of thinking about these phenomena. Finally we address what we consider to be crucial dimensions concerning the landscape of unexplained "matters"; fatigued being, pain-full being and dys-ordered being, all expressive momentums of an aesthetic of resistance.

Musculoskeletal pain and overuse syndromes in adult acquired major upper-limb amputees

OBJECTIVES

(1) To compare the prevalence of self-reported musculoskeletal pain in upper-limb amputees (ULAs) in Norway with that of a control group drawn from the Norwegian general population; (2) to describe musculoskeletal pain bothersomeness in ULAs; (3) to estimate the association between prosthesis wear and self-reported musculoskeletal pain in ULAs; and (4) to describe the occurrence of musculoskeletal overuse syndromes in a sample of ULAs.

DESIGN

Cross-sectional study: postal questionnaires and clinical examinations.

SETTING

Norwegian ULA population. Clinical examinations performed at 3 clinics.

PARTICIPANTS

Questionnaires: population-based amputee sample (n=224; 57.4% response rate). Random control sample (n=318; 33.1% response rate). Clinical examinations: combined referred sample and convenience sample (n=70; 83.3% of those invited). Survey inclusion criteria: adult, resident in Norway and mastering Norwegian (amputees and controls), acquired major upper-limb amputation (amputees only).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Self-reported musculoskeletal pain and pain bothersomeness. Self-reported pain in prosthesis wearers and nonwearers. Clinically assessed diagnoses of musculoskeletal overuse syndromes.

RESULTS

Self-reported musculoskeletal pain was more frequent in ULAs than in the control group except for lower back pain. In ULAs, 57.0% reported neck/upper back pain (odds ratio [OR]=2.56; 95% confidence interval [CI], 1.64-3.98), and 58.9% reported shoulder pain (OR=4.00; 95% CI, 2.51-6.36). The percentage difference for arm pain was 24.8% (P<.001). All pain was reported as bothersome. We found no difference in pain prevalence between prosthesis wearers and nonwearers. Musculoskeletal overuse syndromes were found in 6.1% to 24.2% of ULAs, depending on diagnosis and case-definition criteria.

CONCLUSIONS

Upper-limb loss increases the risk of self-reported musculoskeletal pain in the neck/upper back, shoulders, and in the remaining arm. Prosthesis wear does not prevent musculoskeletal pain. Further studies should be conducted to investigate the effects of prosthesis wear and possible preventive measures, and to ascertain our preliminary prevalence estimates of overuse syndromes.