Surgical treatment, especially the early synovectomy is now closed-up in the field of orthopedic fields for last several years. Authors had experienced in 30 operations for advanced rheumatoid arthritis. A suruey is carried out with analysis of operation result (Excellent 4 cases, Good 13 cases, Fair 7 cases and Poor 6 cases) in regard to pre-operative contracture of joint. X-ray findings and findings on operating table. Operative finding namely the extent of tissue involvement of the joint is found to be closely related with the final results Some details and important points of treatment are emphasized with reference reviews.