Seminars in Arthroplasty
Volume 20, Issue 1 , Pages 11-14, March 2009

The Medial Unicompartmental Option: Mobile Magic

  • Keith R. Berend, MD

      Affiliations

    • Joint Implant Surgeons Inc, The Ohio State University, New Albany, Ohio
    • Department of Orthopaedics, The Ohio State University, New Albany, Ohio
    • Corresponding Author InformationAddress reprint requests to Keith R. Berend, MD, The Ohio State University, Joint Implant Surgeons Inc 7277 Smith's Mill Road, Suite 200, New Albany, Ohio 43054
    • ,
  • Adolph V. Lombardi, MD, FACS

      Affiliations

    • Joint Implant Surgeons Inc, The Ohio State University, New Albany, Ohio
    • Department of Orthopaedics, The Ohio State University, New Albany, Ohio
    • Department of Biomedical Engineering, The Ohio State University, New Albany, Ohio

The indications for unicompartmental knee arthroplasty (UKA) are widely debated despite a growing body of literature. The current study investigates the minimum 2-year outcomes of Oxford phase III mobile-bearing UKA using a liberal set of indications for the procedure. Two hundred fifty-seven consecutive UKAs in 219 patients with potential for 2 years follow-up were followed. There have been 10 failures for a survivorship of 96.1% at 45 months. Patient factors such as weight, age, pre-existing patellofemoral disease, and anterior knee pain were not related to early failure. Clinical scores were better in the older, lighter-weight patients with isolated medial knee pain. After more than 900 consecutive Oxford UKAs over 4 years, the cumulative survivorship is greater than 98% despite ignoring age, weight, location of preoperative pain, and radiographic signs of patellofemoral disease. The Oxford phase III minimally invasive UKA is truly mobile magic.

Keywords: unicompartmental, partial, knee, arthroplasty, reconstruction

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 Disclosure. The authors have received payments from a company related to products discussed or presented in this study (Biomet Inc).

PII: S1045-4527(08)00066-7

doi:10.1053/j.sart.2008.11.004

Seminars in Arthroplasty
Volume 20, Issue 1 , Pages 11-14, March 2009

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