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J Arthroplasty. 2014 Jun;29(6):1216-8. doi: 10.1016/j.arth.2013.11.026. Epub 2013 Dec 2.

Mortality following revision total knee arthroplasty: a matched cohort study of septic versus aseptic revisions.

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The Harris Orthopedic Laboratory and Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts.


We report the medium-term mortality after septic versus aseptic revision total knee arthroplasty (TKA) and factors that can contribute to mortality in revision TKA. Mortality rates of 88 patients undergoing septic revision (septic group) were compared with age- and year of surgery-matched 88 patients of aseptic revision (aseptic group). The overall mortality after revision TKA was 10.7% at a median of 4 years of follow-up (range, 2-7 years). However, the mortality after septic revision (18%, 16/88) was six times higher than that of aseptic revision (3%, 3/88) (P = 0.003). Infections with Staphylococcus aureus and/or methicillin resistance was not associated with higher mortality rates. Multivariate analysis indicated that increased age (P < 0.001), higher ASA class (P = 0.002), and septic revision (P < 0.001) were identified as independent predictors of increased mortality after revision TKA.


aseptic revision; longer-term; mortality; septic revision; total knee arthroplasty

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