Abstract
Over a 1-yr period 102 patients with a clinical diagnosis of medial or lateral epicondylitis (tennis elbow) or rotator cuff tendonitis were treated with topical applications of dimethyl sulfoxide (DMSO). A double-blind controlled study was done on these patients in the private practice of an orthopedic surgeon to determine the efficacy of this material in the treatment of these 2 common clinical conditions. Beneficial effects were assessed with respect to improvement in pain, tenderness or swelling, and increase in the range of motion. Forty patients were treated for each of the 2 ailments; patients treated with the 70% DMSO aqueous solution did not receive any more beneficial effect drug than patients who received 5% DMSO aqueous placebo solution.

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