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Quadriceps snip in 321 revision total knee arthroplasties: A safe technique in a matched cohort study

Journal of Arthroplasty Jul 19, 2019

Abdel MP, et al. - Through retrospectively recognized 3,107 revision total knee arthroplasty (TKAs) conducted between 2002 and 2012 and 321 of these knees that had undergone quadriceps snip (QS), the researchers intended to assess the longer-term clinical outcomes and complications in a contemporary cohort of subjects treated with QS and to contrast them to a matched cohort treated with standard exposure during revision TKAs. The mean Knee Society score improvement was not markedly different among groups. The mean range of motion was 93° in the QS group and was slightly greater at 100° in the control group, at latest follow-up. In 21 QS knees, postoperative extensor lag of 10 degrees or more was present in comparison to the 19 control knees. In both groups with extensor mechanism disruption occurring in 3, complication rates were similar and in the QS group as compared to 4 in the control group. Kaplan-Meier survivorships free of revision for aseptic loosening was observed as similar at 10 years, free of any revision, and free of any reoperation. Hence, through this largest cohort study to report the outcomes of QS and also the biggest to report outcomes compared to subjects treated with standard exposure, it was concluded that QS was a facile technique in complex revision TKAs which permitted for safe exposure with few complications.
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