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Using ergonomics to prevent back injuries.
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Prescription for workplace safety: bend and lift correctly to avoid back injuries!
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Race and socioeconomic differences in post-settlement outcomes for African American and Caucasian Workers' Compensation claimants with low back injuries.
The purpose of this study was to predict post-settlement pain intensity, psychological distress, disability, and financial struggle among African American (n=580) and non-Hispanic Caucasian (n=892) Workers' Compensation claimants with single incident low back injury. The study was a population-based telephone survey conducted in three population centers in Missouri. Post-settlement outcomes were predicted from claimant demographics (race, age, gender); socioeconomic status (SES); diagnosis and legal representation; and Workers' Compensation resolution variables (treatment costs, temporary disability status, disability rating, settlement costs). Simultaneous-entry, hierarchical multiple linear regression analyses indicated that African American race and lower SES predicted higher levels of post-settlement pain intensity, psychological distress (general mental health, pain-related catastrophizing), disability (pain-related role interference), and financial struggle, independent of age, gender, diagnosis, legal representation, and Workers' Compensation resolution variables. The results suggest that African American race and lower SES-relative to Caucasian race and higher SES-are risk factors for poor outcomes after occupational low back injury. Mechanisms to explain these associations are discussed, including patient-level, provider-level, legal, and Workers' Compensation system-level factors.
Industrial compensation for low back injuries: special problems.
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Race differences in diagnosis and surgery for occupational low back injuries.
STUDY DESIGN: Population-based telephone survey in Missouri. OBJECTIVE: To examine the unique contribution of race to diagnosis and surgery rates in workers' compensation claimants. SUMMARY OF BACKGROUND DATA: Race differences in diagnostic specificity and rates of surgery may mediate documented differences in workers' compensation case management outcomes (treatment expenditures, disability ratings, and settlement awards) between African Americans and whites with low back injuries. PARTICIPANTS AND METHODS: African American (n = 580) and white (n = 892) workers' compensation claimants with single-incident low back injuries were interviewed regarding diagnoses and treatments received for their injury. Participants were, on average, 21 months after settlement. Analyses examined the association of race (controlling for clinical findings, legal representation, age, gender, and socioeconomic status) with diagnosis (herniated disc vs. regional backache) and surgery. Risk ratios for race were calculated. RESULTS: Whites were 40% more likely than African Americans to receive a herniated disc diagnosis. Of claimants with the latter diagnosis, whites were 110% more likely than African Americans to undergo surgery. CONCLUSIONS: Race differences in diagnosis and surgery may help to explain why African Americans, relative to whites, receive lower workers' compensation medical expenditures, disability ratings, and settlement awards.
New strategies in the management of low back injuries in gymnasts.
Low back pain is an extremely common complaint in competitive gymnasts, and these athletes are at risk for multiple potential structural injuries to the spine. Of particular concern among gymnasts is spondylolysis. Unfortunately, there are no published, controlled trials on the diagnosis or treatment of spondylolysis in adolescent athletes. However, based on the current literature, there would appear to be little role for the use of plain radiography in the diagnosis of symptomatic spondylolysis; nuclear imaging with single photon emission computed tomography (SPECT) appears to represent the best screening tool for diagnosis. Given the limited specificity of nuclear imaging in the spine, it is generally best to follow any positive study with a limited thin-cut computed tomography scan of the region of concern on the SPECT. Treatment should be based on the radiographic stage of the lesion. Relative rest is an essential component of care. Although the rehabilitation of gymnasts with lumbar injuries is poorly studied, the related literature would support incorporating the concepts of dynamic lumbar stabilization and sport-specific training into their rehabilitation programs.
Predicting return to work. A long-term follow-up study of railroad workers after low back injuries.
STUDY DESIGN: Evaluation of the long-term outcomes of 178 railroad employees with low back injury who had completed a multidisciplinary rehabilitation program. OBJECTIVES: To study two major areas: 1) outcomes of the rehabilitation program in terms of the patient's improvement in function and rate of return to work and 2) factors that predict long-term retention at work, both at the railroad and elsewhere. SUMMARY OF BACKGROUND DATA: Several studies have been published examining rehabilitation outcomes of individuals covered under workers' compensation law, but few exist that have examined railroad workers covered by the Federal Employers Liability Act, and few studies exist with follow-up periods longer than 3 years. METHODS: Physical/medical, self-reported, and employment/financial data were collected on each patient from medical and employment records. Follow-up data regarding employment status were obtained either from the employer or from the patient by telephone interview. RESULTS: On average, the patients improved in all objective and subjective measures after rehabilitation. Improvements in these measures were not predictive of return to work. At follow-up examination, 89% of the contacted patients were employed--61% still at the rail-road. The employment factors of lost work days and length of employment and the financial factor of wage rate were the most predictive of long-term work status. CONCLUSIONS: The multidisciplinary program in the current study was found to improve patient physical functioning and reduce pain. However, success in these measures was not predictive of long-term work status, suggesting that other factors have an impact on work status. Clinicians must be aware that employment and financial factors may have a strong influence on return-to-work outcomes.
Posture, exercise can help prevent low back injuries.
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Zero lift programs in small rural hospitals in Washington state: reducing back injuries among health care workers.
In Washington State, health care workers have the highest rate of compensable back injuries. Washington Hospital Services, a self-insured workers' compensation program, implemented a zero lift program in 31 of its 38 hospitals. Zero lift was defined as replacing manual lifting, transferring, and re-positioning of patients with mechanical lifting or use of other patient assist devices. This program included two trusts, two pools of hospitals that self-insure workers' compensation. The pools are governed by elected boards of trustees from the pool memberships and regulated by the State Department of Labor and Industries. This pretest-posttest descriptive study compared patient-handling injury data prior to program implementation with those after program implementation. Patient-handling injury claims decreased by 43% in the participating hospitals from 2000 to 2004 (i.e., from 3.51 to 2.23). The time lost frequency rate decreased by 50% (i.e., from 1.91 to 1.03).
Disability management of low back injuries by employer-retained physicians: ratings and costs.
BACKGROUND: Medico-legal models of disability determination for low back pain lack empirical support. Besides diagnostic and functional parameters, social and situational factors may influence impairment/disability ratings and costs. METHODS: Archival data from employer-retained occupational medicine physician files and public court records were examined for 184 Workers' Compensation claimants with low back injuries. Regression was used to predict ratings, costs, and settlement duration from medical, functional, social, and situational variables. RESULTS: Diagnosis, surgery, pain, rating year, and clinic predicted impairment ratings from employer-retained physicians. The clinic effect partially reflected claimant ethnicity. Diagnosis, surgery, tests ordered, legal representation, and impairment rating predicted disability ratings at the administrative law judge level. Diagnosis, tests, and impairment rating predicted costs. For musculoskeletal diagnoses, settlement duration was related negatively to treatment duration and positively to costs. CONCLUSIONS: Social and situational parameters influence disability management among employer-retained physicians, while functional variables have little impact. For musculoskeletal low back pain, increased disability and cost may result from variation in treatment duration.
Back injuries and disabilities.
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Early intervention for acute back injury: can we finally develop an evidence-based approach?
OBJECTIVE: Several reviews of the treatment of acute low back pain have been published in the past and have formed the basis of clinical guidelines. However, these lack consistency in some areas and valid data in others. As the literature in this field has continued to expand, the present review was undertaken to establish whether the guidelines in current use are supported by more recently published, scientifically rigorous research, and whether additional consensus regarding treatment of acute low back injury has been forthcoming in recent years. DESIGN: A review, and critical analysis, of literature relating to the treatment of acute low back pain that has been published since the production of the currently used clinical guidelines. The guidelines have been reviewed to assess whether their recommendations remain supportable. CONCLUSIONS: Recent research appears to support current clinical guidelines, i.e. exercise may have a positive effect while bed rest is ineffective and may be harmful, simple analgesics and nonsteroidal anti-inflammatory drugs (NSAIDs) have short-term benefits, and spinal manipulation may be effective in the first four weeks; no evidence was found for traction or back schools. However, we need more randomized controlled trials of treatments shown to be successful with the chronic population, e.g. focused on understanding psychological determinants, and using a multidisciplinary biopsychosocial approach. In the future this may help us to prevent acute low back progressing to the chronic state.
Glomus tumor: an unusual cause for return to work delay after back injury.
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Back injury prevention means education.
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Neuromuscular function in athletes following recovery from a recent acute low back injury.
STUDY DESIGN: Observational case control design. OBJECTIVES: To examine muscle response to sudden trunk loading in athletes with and without a recent history of acute low back injury (LBI). BACKGROUND: Impaired neuromuscular function is associated with chronic low back pain. This study examined whether such impairment persists after recovery from an acute LBI. METHODS AND MEASURES: Seventeen athletes who had a recent history of acute LBI and 17 matched healthy controls were tested. At the time of testing (mean = 56 days postinjury, range = 7-120 days postinjury), all athletes were symptom free and had returned to regular competition. Subjects performed isometric exertions in trunk flexion, extension, and left and right lateral bending against a trunk restraining cable. Upon reaching the target isometric force, the cable was released to impose sudden loading on the lumbar spine. Surface EMG signals from 12 major trunk muscles were recorded. The shut-off and switch-on latencies and number of muscles responding to sudden loading were compared between the 2 groups. RESULTS: In all 4 testing directions, the athletes with a recent history of acute LBI shut off significantly fewer muscles and did so with delayed latency. On average, the injured subjects shut off 4.0 out of 6.0 (SD = 1.3) muscles compared to 4.6 out of 6.0 (SD = 1.3) muscles in the control group. The average muscle shut-off latency was 71 (SD = 31) milliseconds for the injured and 50 (SD = 21) milliseconds for the control subjects. No differences were found in number or latency of muscles switching on. CONCLUSIONS: These objective measures of neuromuscular function indicated an altered muscle response pattern to sudden trunk loading in athletes following their clinical recovery from a recent acute LBI.
Outcomes in work-related upper extremity and low back injuries: results of a retrospective study.
BACKGROUND: The outcomes of treatment for work-related injuries and illnesses are multidimensional and complex, but have rarely been explored in detail. This study was intended to provide information on a sample of workers representing a range of jobs and employers typical of the workers compensation system. METHODS: A mailed, self-report survey measuring multiple dimensions was conducted. Identified through the New Hampshire Division of Workers' Compensation First Report of Injury database, a sample of workers with injuries to their lower back (60%) or upper extremities (40%) a year prior to the study were surveyed. Response rate was 80% (N=169; upper extremity cases=70; low back cases=99). RESULTS: Most (82.8%) were working one year post-injury. Over half reported residual effects of the injury on work or activities of daily living. Many working subjects reported persistent injury-related anxiety and pain at the end of the work day, worse in those with low back pain compared to those with upper extremity injuries. Almost 40% of those who returned to work suffered a reinjury. Forty-four percent of respondents suffered significant injury-related financial problems, which were worse in those who had been out of work for longer periods. CONCLUSIONS: Occupational musculoskeletal injuries do result in significant, long-term adverse physical, economic, and psychological consequences, as demonstrated in self-reported surveys.
Management of occupational back injuries: differences among African Americans and Caucasians.
This study examined differences in the case management of occupational low back injuries in a large, racially diverse population of Workers' Compensation claimants in Missouri. Participants were African Americans (N=580) and non-Hispanic whites (N=892) who had filed occupational injury claims that were settled over an 18-month period. Telephone interview data were gathered regarding diagnoses, legal representation, demographics, and socioeconomic status. The Missouri Division of Workers' Compensation also provided information on medical and temporary disability expenditures, claim duration, final disability ratings, and settlement awards. Simultaneous-entry, hierarchical multiple and logistic regression analyses showed significant and substantial effects for injury-related variables, socioeconomic status, and race across all Workers' Compensation variables. Differences remained for both injury and African Americans and lower socioeconomic status workers after controlling for injury, and for African Americans after controlling for both injury and socioeconomic status. Because Workers' Compensation mandates equal access to treatment and disability reimbursement for all injured workers, the differences observed in this study may reflect sociocultural biases in disability management among healthcare providers.