Spine
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Randomized Controlled Trial Clinical Trial
Functional restoration for chronic low back pain. Two-year follow-up of two randomized clinical trials.
Two randomized, prospective clinical trials involving 238 chronic low back disability patients were carried out. Results at 2-year follow-up are presented. ⋯ The functional restoration program seems effective in various parameters compared with the less intensive programs, but the differences in outcome in the two parallel studies indicate the necessity of testing a treatment program in different settings, in that the statistical variation may be a major factor in results of different studies.