Shoulder arthroplasty for rheumatoid arthritis.
Forty-two Designed After Natural Anatomy (DANA) total shoulder arthroplasties (Howmedica, Rutherford, New Jersey) were performed in 34 rheumatoid patients. Thirty shoulders in 23 patients were followed for a minimum of two years. Twelve of the 30 shoulders (40%) had significant rotator cuff tears. The average rating for pain improved from 3 points preoperatively to 8 points postoperatively for the overall group, and the average rating for function improved from 3 points preoperatively to 6 points postoperatively. Range of motion (ROM) improved substantially in patients treated with a regular glenoid component. Four patients were treated with hooded glenoid components designed to improve stability for shoulders in which the rotator cuff was deficient. In the rotator-cuff-deficient patients, pain and function improved; however, ROM was unchanged. Complications, including one acromial fracture and two loose glenoid components, required revision surgery.
Thomas
B J
BJ
Department of Surgery, Center for Health Sciences, Los Angeles, CA 90024.
Amstutz
H C
HC
Cracchiolo
A
A
D000368:Aged; D001172:Arthritis, Rheumatoid / Q000601:surgery*; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000601:surgery; D011475:Prosthesis Failure; D016059:Range of Motion, Articular; D012086:Reoperation; D012785:Shoulder Joint / Q000503:physiopathology / Q000601:surgery*