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Synovectomy is frequently carried out as a surgical therapy in chronic articular rheumatism patients and many surgeons have noted subsidence or relief of pain after conventional synovectomy. However, there often is either loss of joint motion or a prolonged recovery period. We have performed washing of the knee joint and subsequently partial synovectomy with a punch under direct vision with an arthroscope. This method gave rise to a temporary remission of the symptoms, but was followed by recurrence in many cases.<BR>Recently we carried out resection of the inner layer of the synovial membrane with a shaver under arthroscopic control in 32 knees of 20 cases and obtained good results jn 81 per cent. Clinical follow up suggests that synovectomy performed with a shaver produces results almost comparable with those of conventional synovectomy.<BR>The advantages of this method are as follows. Because of the small incision, bleeding is minimized, post operative pain is greatly decreased, recovery of function is greatly accelerated, and hospitalization is shortened. A few complications were noticed with this method, But none were serious. The method of synovectomy with a shaver under an arthroscopie, along with problems in its performance and progress between 6 months and 3 years after the surgery are reported with some discussion.
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