Modern Perspectives on Unicompartmental Knee Arthroplasty: An Editorial Review.

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Abstract

Conflict of interest statement: Conflict of Interest: Nil 6. Instr Course Lect. 2017 Feb 15;66:201-209. Medial Unicompartmental Knee Arthroplasty. Richardson AB(1), Morris MJ. Author information: (1)Adult Hip and Knee Reconstruction Fellow, Joint Implant Surgeons, New Albany, Ohio. Unicompartmental knee arthroplasty (UKA) has substantial benefits, including lower perioperative morbidity and earlier recovery, compared with total knee arthroplasty. The traditionally strict indications for UKA have been challenged by studies that expanded the indications based on a diagnosis of anteromedial osteoarthritis of the knee and demonstrated successful outcomes. The Nuffield criteria no longer prohibit patients from UKA based on age, obesity, anterior knee pain, or involvement of the patellofemoral joint. UKA implant designs have evolved substantially in the past three decades, and both fixed- and mobile-bearing UKA implants are currently available. Both fixed- and mobile-bearing UKA implants demonstrate excellent clinical outcomes at more than 10 years postoperatively but continue to have different modes of long-term implant failure. Proper patient selection and execution of surgical technique are critical to optimize patient outcomes.