The Dana total shoulder arthroplasty.

摘要: Fifty-six Dana unconstrained total shoulder arthroplasties in forty-seven patients were followed for a minimum of two years. The preoperative diagnoses included osteoarthritis, rheumatoid arthritis, traumatic avascular necrosis, failed hemiarthroplasty, and arthroplasty another design. For all the patients, average rating pain improved from 3 points preoperatively to 8 postoperatively, function 7 points. ranges abduction external rotation substantially shoulders that affected by or osteonecrosis. Ten treated with hooded glenoid component, designed improve stability which rotator cuff is deficient. In these shoulders, both improved, although range motion did not. Complications required revision developed five regular component had been implanted component. A radiolucent line at bone-cement interface fifty-three but only revisions done loosening