Arthroplasty of the first metatarsophalangeal joint with a double-stem silicone implant. Results in patients who have degenerative joint disease failure of previous operations, or rheumatoid arthritis.

Sixty-six patients who had a total of eighty-six double-stem silicone implants in the first metatarsophalangeal joint were followed prospectively for an average of 5.8 years (range, two to fifteen years). There were two groups of patients: thirty-four patients (thirty-seven implants) who had degenerative joint disease (including those who had hallux rigidus or in whom a previous operation on a bunion had failed) and thirty-two patients (forty-nine implants) who had rheumatoid arthritis.

The UCLA Charnley experience: a long-term follow-up study using survival analysis.

During the period between February 1970 and December 1973, 149 Charnley total hip arthroplasties were performed at UCLA Medical Center. Fifty-seven percent have a follow-up period of at least four years, and 21% have a follow-up period of ten years or more. The peri- and postoperative complication rate was high, with an incidence of 32.