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. 2012 Oct;27(9):1696-700.
doi: 10.1016/j.arth.2012.03.005. Epub 2012 May 2.

Total knee arthroplasty in morbidly obese patients treated with bariatric surgery: a comparative study

Erik P Severson  1 , Jasvinder A Singh, James A Browne, Robert T Trousdale, Michael G Sarr, David G Lewallen
Affiliations

Total knee arthroplasty in morbidly obese patients treated with bariatric surgery: a comparative study

Erik P Severson et al. J Arthroplasty. 2012 Oct.

Abstract

Our objective was to compare outcomes (anesthesia time, total operative time, tourniquet time, duration of hospital stay, 90-day complication rate, and transfusion rates) of patients with total knee arthroplasty (TKA) who underwent bariatric surgery before or after TKA. One hundred twenty-five patients were included: TKA before bariatric surgery (group 1; n = 39), TKA within 2 years of bariatric surgery (group 2; n = 25), and TKA more than 2 years after bariatric surgery (group 3; n = 61). Patients with TKA more than 2 years after bariatric surgery had shorter anesthesia and total operative and tourniquet times than other groups; differences were significant between groups. Ninety-day complication and transfusion rates approached but did not meet statistical significance. Ninety-day complication rates and duration of hospital stay did not differ significantly between the 3 groups. The level of evidence was level II (cohort study).

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