• D Ehrmann-Feldman, M Rossignol, L Abenhaim, and D Gobeille.
• Centre for Clinical Epidemiology and Community Studies, Sir Mortimer B Davis-Jewish General Hospital, Montreal, Quebec, Canada.
• Phys Ther. 1996 Feb 1; 76 (2): 150-6; discussion 156-7.

Background And PurposeThis study described the physical therapy referral of workers compensated for back injury; characterized physical therapy by duration and choice of therapeutic techniques; and compared workers who were and were not referred for physical therapy in terms of age, gender, diagnosis, and absence from work.SubjectA cohort of 2,147 subjects were randomly selected from 54,401 workers compensated for back injuries in 1988.MethodsEach subject was followed for 2 years from date of entry into the study. Data were obtained from the Quebec Worker's Compensation Board computerized files, medical files, and initial reports completed by physical therapists.ResultsOf the cohort, 389 subjects (18%) had received physical therapy after referral by their physician. Exercise, heat, ultrasound, back education, manipulation, and transcutaneous electrical nerve stimulation were the most frequently selected treatments. Implementation of physical therapy within 1 month of back injury had a strong protective effect on return to work within 60 days. Female gender and presence of a specific diagnosis were predictors for greater than 60 days' absence.Conclusion And DiscussionThis study demonstrated that physicians request physical therapy services based on certain patient characteristics. Patients who were referred earlier tended to return to work sooner than those who were referred later, which indicates that timing of physical therapy is an important factor in the rehabilitation of workers with low back pain.

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