Abstract
We retrospectively reviewed and compared the outcomes and complications associated with 81 single digit and 168 multi-digit proximal interphalangeal joint arthroplasties performed from 1998 to 2012 in 136 patients. Clinical outcomes were assessed with an average follow-up of 5.3 years for single digit and 5.9 years for multi-digit proximal interphalangeal joint arthroplasty. Comparing single versus multi-digit proximal interphalangeal joint arthroplasty, the reoperation-free survival was 67% and 68% at 5 years and 56% and 67% at 10 years, respectively. Furthermore, in comparison of single versus multi-digit proximal interphalangeal joint arthroplasty, the revision-free survival was 80% and 86% at 5 years and 80% and 85% at 10 years, respectively. Given the similar, or even slightly improved, rates of complications, reoperation, and revision surgery, proximal interphalangeal joint arthroplasty performed on multi-digits results in no worse outcomes compared with single digit proximal interphalangeal joint arthroplasty.
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