Unicompartmental Knee Arthroplasty: Indications, Outcomes, and Complications

Abstract

Unicompartmental knee arthroplasty (UKA) is a surgical option which is indicated in a special subset of osteoarthritis patients. Although it is often technically challenging, out-comes are positive when indications are followed as operative criteria. Benefits compared to total knee arthroplasty (TKA) include lower morbidity and a shorter recovery time. Potential complications include dislocation of the mobile-bearing surface, prosthesis loosening, and periprosthetic fracture. Revision surgery often involves a conversion to TKA, with outcomes comparable to revisions after TKA. 'he purpose of this review is to summarize the indications, outcomes, and complications of UKA, as well as the clinical outcomes after revision procedures.