• Int Orthop · May 2015

    Comparative Study

    Comparison of quadriceps snip and tibial tubercle osteotomy in revision for infected total knee arthroplasty.

    • Zhenhui Sun, Abhishek Patil, Eun-Kyoo Song, Hyun-Tae Kim, and Jong-Keun Seon.
    • Center for Joint Disease, Chonnam National University Hwasun Hospital, Gwangju, South Korea.
    • Int Orthop. 2015 May 1; 39 (5): 879-85.

    PurposeControversies exist regarding the ideal approach in a revision total knee arthroplasty for infection, providing adequate exposure with minimum complications. The purpose of this study was to compare the results of second stage revision total knee arthroplasty (TKA) between tibial tubercle osteotomy (TTO) and quadriceps snip (QS) approaches for infected TKA.MethodsThe clinical and radiological outcomes of 27 patients of TTO and 21 patients of QS in second stage revision TKA for infected TKA were compared with an average follow up of 51 months. We evaluated the clinical outcomes including HSS score, WOMAC score, flexion contracture, and maximal flexion between two groups. The radiological outcomes in terms of femorotibial alignment, patellar height and complications were also compared.ResultsAt the final follow-up, KSS score, HSS score, WOMAC score, flexion contracture, and maximal flexion showed no statistically significant differences between the two groups. The femorotibial alignment and patellar height also showed no differences between the two groups. During the surgery, patellar tendon partial avulsion was more commonly observed in the QS group than in the TTO group (five vs two cases).ConclusionBoth tibial tubercle osteotomy and quadriceps snip in revision TKA were considered as good approaches without significant complications. However, cautious exposure of patellar tendon or strong fixation of the osteotomy is needed to minimize the complications.

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