Isolated Tibial Polyethylene Insert Exchange After Total Knee Arthroplasty for Treatment of Instability and/or Polyethylene Wear.

Journal and index pages often block iframe embedding. This reader keeps the evidence details in Orthonotes and leaves the source page one click away.

Abstract

[Indexed for MEDLINE] 4. Knee Surg Sports Traumatol Arthrosc. 2023 Apr;31(4):1477-1482. doi: 10.1007/s00167-022-07280-0. Epub 2023 Jan 3. Inferior results at long-term follow-up after extensor mechanism allograft reconstruction in septic compared to aseptic revision total knee arthroplasty. Baldini A(1), Lamberti A(2), Balato G(3), Cavallo G(4), Summa P(2). Author information: (1)Istituto Fiorentino di Cura e Assistenza (IFCA), Via del Pergolino 4/6, 50139, Florence, Italy. drbaldiniandrea@yahoo.it. (2)Istituto Fiorentino di Cura e Assistenza (IFCA), Via del Pergolino 4/6, 50139, Florence, Italy. (3)Department of Public Health, School of Medicine, Federico II University, Via S. Pansini, 80131, Naples, Italy. (4)Department of Health Science, University of Florence, Viale GB Morgagni 48, 50134, Florence, Italy. PURPOSE: Extensor mechanism lesion after total knee arthroplasty (TKA) is a catastrophic complication. Reconstruction with extensor mechanism allograft (EMA) has been described as a sound salvage procedure. Its effectiveness at long term and in septic cases is still under scrutiny. The long-term results of EMA reconstruction for chronic extensor mechanism failures following aseptic and septic revision TKA have been analysed. METHODS: From the institutional database, 35 patients with a revision TKA (RevTKA) undergoing EMA reconstruction from 2005 to 2015 have been retrospectively identified. A history of periprosthetic joint infection (PJI) was found in 13 (37%) patients. The mean follow-up was 81.2 months (± 34.7, range 3-120). EMA failures were considered for lag more than 20°, Knee Society Score (KSS) less than 60 points, and/or in the case of revision of the allograft. RESULTS: The mean KSS improved from 35.9 (± 16.9, range 0-54) to 86.6 (± 10.4, range 54-99) points in the aseptic group (p