of the 71 patients , 40 had osteoarthritis with 64 joints replaced , 22 had rheumatoid arthritis with 29 joints replaced , four patients were revised from a failed excisional hemiarthroplasty , three patients with four joints involved were revised from a failed silicone implant hemiarthroplasty , and two patients had a surgically arthrodesed metatarsophalangeal joint taken down and revised to a total joint arthroplasty .
C0029408
osteoarthritis
C0022417
joints