Ivory arthroplasty for trapeziometacarpal osteoarthritis: 10-year follow-up.

This prospective study investigates long-term functional outcome after total trapeziometacarpal joint replacement with the Ivory arthroplasty for trapeziometacarpal joint osteoarthritis. Clinical outcome, overall function, pain, and radiologic outcome after a minimum of 10 years were evaluated for 26 Ivory arthroplasty in 24 patients. Two patients had bilateral arthroplasties. The female to male ratio was 22:2, and the mean age was 71 years (range 57-83). The mean follow-up period was 130 months (range 120-142). Overall functioning as defined by the QuickDASH score and visual analogue pain score improved by 50% and 81%, respectively, when compared with the preoperative status. However, these outcomes deteriorated beyond 5 years after surgery. Long-term results suggest the Ivory arthroplasty to be a reliable treatment for trapeziometacarpal osteoarthritis since it improves overall function and reduces pain up to 10 years postoperatively. However, revision within 10 years after surgery was needed in four of 26 cases. Level of evidence: II.