alexa Minimum Two-Year Outcomes of Modular Bicompartmental Knee Arthroplasty


Journal of Osteoarthritis

Author(s): Atul F Kamath, Ashley Levack, Thomas John, Beverly S Thomas, Jess H Lonner

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The purpose of this study was to determine the results of modular unlinked bicompartmental knee arthroplasty (BiKA) for medial (or lateral) and patellofemoral arthritis. Twenty-nine modular BiKAs were followed prospectively, for a mean of 31 months (range, 24–46 months). Outcome measures included Knee Society Knee and Function Scores, KOOS, SF-12, and WOMAC, as well as radiographic assessments and implant survivorship. Two tail paired Student's t test was used to determine statistical differences between preoperative and postoperative scores. Mean range of motion (ROM) improved from 122° to 133° (P < 0.001). There was a statistically significant improvement across all functional scores. One patient underwent conversion to total knee arthroplasty at 3 years for knee instability. There were no cases of patellar instability, implant loosening or wear, or progressive arthritis.

This article was published in The Journal of Arthroplasty and referenced in Journal of Osteoarthritis

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