A stainless-steel or titanium prosthetic replacement for the trochlea and capitellum was developed and used in ten elbows, five with post-traumatic lesions, three with rheumatoid arthritis, and two with ankylosis secondary to hemophilia. After followups of from one to seven years, the results were found to be unpredictable or poor in the patients with inflammatory arthritis or hemophilia, while a stable, painless elbow with a functional range of motion was achieved in four of the five patients with post-traumatic lesions.