The IVORY® prosthesis is a total trapeziometacarpal joint prosthesis used for the treatment of symptomatic trapeziometacarpal osteoarthritis. The aim of this prospective study was to evaluate its long-term outcomes with a minimum follow-up of 10 years. From 2004 to 2007, 110 trapeziometacarpal prostheses (95 patients) were implanted. The implant survival curve was constructed using the Kaplan–Meier method. Five patients were lost from follow-up and two died. Six prosthesis (5.5%) were removed after dislocation or fracture of the trapezium. The survival rate of the prosthesis was 95%. After 10 years, the mean visual analogue pain score was 0.24/10 and the key-pinch force was similar to the other hand. Dislocations occurred for eight implants (7.3%). No radiological loosening was noted. In conclusion, the long-term results with the IVORY® prosthesis are very satisfactory in terms of pain relief, function and survival.
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