PHYSICAL THERAPY OUTCOMES FOR PATIENTS RECEIVING WORKERS COMPENSATIONFOLLOWING TREATMENT FOR HERNIATED LUMBAR DISC AND MECHANICAL LOW-BACK-PAIN SYNDROME

Outcome of physical therapy for patients receiving workers' compensati on may be related to a variety of factors, including the presence or a bsence of herniated lumbar intervertebral disc. The purpose of this st udy was to determine the level of disability, physical impairment, and rate of return-to-work for patients with disc disease and for those w ith mechanical low back pain syndrome without evidence of disc lesion. Twenty patients with disc disease and 22 patients with mechanical low back pain syndrome participated in this study. Physical therapy consi sted of multiple interventions, including manual therapy based on the pattern of motion-provoked symptoms. The Oswestry disability questionn aire, fingertip-to-floor distance, and maximum pain-free isometric sta tic lift were measured at the initial evaluation, I month following th e initial assessment, and at discharge from the clinic. Patients with disc disease did not show significant improvement in the mean Oswestry score or in forward bending, but did show increased static lift capac ity. In contrast, patients with mechanical low back pain syndrome had a significant reduction in disability and significant improvements in fingertip-to-floor distance and maximum pain-free isometric static lif t At the time of discharge, 90% of the patients followed with mechanic al low back pain syndrome returned to work in some capacity compared w ith 45% of the patients followed with disc disease. A physical therapy program with multiple interventions that includes treatment based on the pattern of motion-provoked symptoms appears to have the greatest b enefit for patients with mechanical low back pain syndrome.