[A comparative test of Soviet and American diagnostic criteria for osteoarthrosis (gonarthrosis)]

Diagnostic criteria for osteoarthrosis worked out at the Institute of Rheumatology, AMS of the USSR and the criteria for gonarthrosis proposed by the Criteria Committee of American Association of Rheumatology were compared in a clinical trial which involved 76 patients with osteoarthrosis and 29 patients with other rheumatic diseases. The comparative approbation of both criteria has shown their suitability for diagnosing osteoarthrosis of the knee joint and their high sensibility and specificity. It has shown the simplicity and availability of the regression tree method.