Predicting back pain treatment outcomes among workers' compensation patients: important information for clinical neuropsychologists.

Low back pain is an increasingly prevalent and costly issue in the United States. It is a particularly relevant problem for Workers' Compensation patients, who typically experience worse surgical and functional outcomes than their non-compensated counterparts. Neuropsychologists often provide intervention and assessment services to compensated patients with back pain, and thus it is critical they possess a basic understanding of the factors that might predispose an injured worker to poor spine surgery outcomes. This paper will review the current literature regarding presurgical biopsychosocial factors which have been implicated in poor back surgery outcomes among injured workers. We provide some tentative guidelines for neuropsychologists to utilize in providing services to injured workers with back pain.

Predicting compensation and medical costs of lumbar fusion patients receiving workers' compensation in utah using presurgical biopsychosocial variables.

STUDY DESIGN: A retrospective-cohort investigation (N = 245) utilizing a review of patient medical records and costs accrued through the Workers' Compensation Fund of Utah. OBJECTIVE: To replicate a previous study of compensation and medical costs in compensated lumbar fusion patients, to identify changes in costs across time, and to identify biopsychosocial variables predictive of current costs. SUMMARY OF BACKGROUND DATA: Previous studies have demonstrated that medical costs associated with lumbar fusion have been rising drastically. It is unclear whether rising fusion costs are occurring in compensation populations. Prior studies have also demonstrated that costs can be predicted on the basis of presurgical biopsychosocial variables, and there is a need to determine whether such variables are still relevant. METHODS: A retrospective review of patient medical records and compensation and medical costs paid by the Workers' Compensation Fund of Utah was performed. RESULTS: Since the mid-1990s, medical costs for compensated lumbar fusion patients in Utah have risen approximately 174%, whereas compensation costs have increased roughly with the pace of inflation. Wage and assignment to nurse case management predicted compensation costs, whereas assignment to nurse case management also predicted medical costs. CONCLUSION: Medical costs among compensated Utah patients receiving lumbar fusion have risen dramatically since the 1990s, whereas compensation costs have not. Biopsychosocial variables continue to be predictive of these costs, although to a more modest degree than in prior studies. Further investigations should look at other factors leading to increased medical costs.

Presurgical biopsychosocial variables predict medical, compensation, and aggregate costs of lumbar discectomy in Utah workers' compensation patients.

BACKGROUND CONTEXT: Elective lumbar discectomy among injured workers is a prevalent spine surgery that often requires a lengthy rehabilitation. It is important to determine presurgical biopsychosocial predictors of compensation and medical costs in such patients. PURPOSE: To determine if presurgical biopsychosocial variables are predictive of compensation and medical costs in a cohort of Utah patients who have undergone open or microlumbar discectomy that are receiving workers' compensation. STUDY DESIGN/SETTING: A retrospective cohort study consisting of a review of presurgical medical records and accrued medical and compensation costs. PATIENT SAMPLE: A consecutive sample of 266 compensated workers from Utah who had undergone either open discectomy or microlumbar discectomy from 1994 to 2000. All patients were at least 2 years postsurgery at the time of follow-up. OUTCOME MEASURES: Total accrued medical, compensation, and aggregate costs. METHODS: A retrospective review of presurgical biopsychosocial variables and total accrued medical, compensation, and aggregate costs. RESULTS: Presurgical variables were statistically significantly correlated with medical and compensation costs. Multiple linear regression models accounted for 31% of variation in compensation costs, 32% in medical costs, and 43% in total aggregate costs. CONCLUSIONS: Presurgical biopsychosocial variables are important predictors of compensated lumbar discectomy costs. Medical cost control programs might benefit from identifying biopsychosocial variables related to increased costs.