Abstract
A nonconstrained, nonarticulated ball-and-socket-type stemmed resurfacing implant for the metacarpophalangeal joints of the fingers has been developed. The prosthesis is inserted with a press fit, and is made of a carbon material that allows appositional bone growth and biologic fixation. Preliminary experience in 15 patients (43 joints) with up to two years followup has demonstrated satisfactory clinical results and biologic acceptance of the device. A few complications have occurred, including recurrent deformity and subluxation of the prostheses. The device is indicated in patients with traumatic arthritis, and in younger patients with rheumatoid arthritis who have minimal soft-tissue disease and deformity.
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