Unicompartmental knee arthroplasty
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Unicompartmental knee arthroplasty (UKA) is a surgical procedure used to relieve arthritis in one of the knee compartments in which the damaged parts of the knee are replaced. UKA surgery may reduce post-operative pain and have a shorter recovery period than a total knee replacement procedure,[1][2] particularly in people over 75 years of age.[3] Moreover, UKAs may require a smaller incision, less tissue damage, and faster recovery times.[2]
In the United States, the procedure constitutes approximately 8% of knee arthroplasties.[4] In comparisons with a more extensive surgical procedure called high tibial osteotomy, UKA has equal or better outcomes.[1][5]