Patellofemoral arthroplasty, where are we today?

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Abstract

[Indexed for MEDLINE] 7. World J Orthop. 2018 Apr 18;9(4):60-64. doi: 10.5312/wjo.v9.i4.60. eCollection 2018 Apr 18. Why total knees fail-A modern perspective review. Lum ZC(1), Shieh AK(2), Dorr LD(3). Author information: (1)Department of Orthopaedic Surgery, Davis Medical Center, University of California, Sacramento, CA 95817, United States. zacharylum@gmail.com. (2)Department of Orthopaedic Surgery, Davis Medical Center, University of California, Sacramento, CA 95817, United States. (3)Department of Orthopaedic Surgery, Keck Medical Center of University of Southern California, Los Angeles, CA 90033, United States. Historically, the most common mechanism of total knee arthroplasty (TKA) failures included aseptic loosening, instability and malalignment. As polyethylene production improved, modes of failure from polyethylene wear and subsequent osteolysis became less prevalent. Newer longitudinal studies report that infection has become the primary acute cause of failure with loosening and instability remaining as the overall greatest reasons for revision. Clinical database and worldwide national registries confirm these reports. With an increasing amount of TKA operations performed in the United States, and with focus on value-based healthcare, it is imperative to understand why total knees fail. DOI: 10.5312/wjo.v9.i4.60 PMCID: PMC5908984