Abstract
1. Opinion is divided as to the value of synovectomy of the knee in juvenile rheumatoid arthritis.
2. Between 1964 and 1970 thirty synovectomies of the knee were performed in twenty-seven children, who have now been kept under review for one to eight years. Three have required a second operation.
3. The operative findings at various stages are presented and discussed, with special reference to the effect on growth of the limb.
4. Synovectomy is a useful procedure which should be reserved for cases where effusion persists despite nine months of conservative treatment and performed before signs of bone erosion appear.