[Prevention of synovitis after surgery of the knee joint].

To prevent postoperative synovitis in 382 patients operated upon for injuries and diseases of the knee joint (traumas of menisci, ruptures of crucial and collateral ligaments, Hoffa's disease etc.) 60 mg of prednisolone was administered into the joint cavity at the end of the operation. The intra-articular injection of prednisolone was shown to considerably reduce incidence of synovitis.