Silastic arthroplasty of the metacarpophalangeal joints in rheumatoid arthritis.

Fifty rheumatodi patients (fifty hands) had Silastic joint implants in 144 metacarpophalangeal joints. Average follow-up time was 2.5 years (maximum 3.5 and minimum 1.5). At clinical examination, gross power, range of motion, lessening of ulnar deviation, relief of pain, and appearance were determined. The results were correlated with preoperative indications. Postoperatively, there was no significant gain in gross power. The range of motion was somewhat increased and the lessening of ulnar deviation was marked. Relief of pain was achieved. Complications included fracture of four of the 144 implants, one infection, and six cases of tendon adhesions.