Early complications of revision total knee arthroplasty in morbidly obese patients

  • Josh Carter
  • Bryan Springer
  • Brian M. CurtinEmail author
Original Article • KNEE - ARTHROPLASTY



Morbid obesity is a known risk factor for complications and failure following primary total knee arthroplasty. Complications following revision total knee arthroplasty (rTKA) in the morbidly obese (BMI > 40) have not been well described. A retrospective cohort study was designed to investigate the early complications of rTKA in morbidly obese patients.


Revision TKA procedures were performed between January 2009 and December 2012 at a single institution. Comparisons were made between patients with a normal BMI (18.5–25) and patients with morbid obesity (BMI > 40).


Thirty-three of 141 morbidly obese patients (23.4%) had a complication compared to 10 of 96 patients with a BMI 18.5–25 (10.4%) (p = 0.011). Morbidly obese patients were younger (69.3 vs. 61.4 years, p < 0.0001), and their most frequent complication in comparison with patients with normal BMI was wound healing problems (p = 0.01).


Morbidly obese patients are at a significantly increased rate of early complications following rTKA compared to a normal weight cohort, especially with regard to wound complications. The morbidly obese group was significantly younger at the time of rTKA. In addition, this study highlights the importance of risk stratification for morbidly obese patients undergoing rTKA.


Revision total knee arthroplasty Morbid obesity Complications 



The authors would like to acknowledge and thank Dr. Susan Odum, Ph.D., and the OrthoCarolina Research Institute for their contributions on this project. Institutional Review Board approved this study.

Compliance with ethical standards

Conflict of interest

All conflicts of interest have been disclosed and none are pertinent to this study.


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Copyright information

© Springer-Verlag France SAS, part of Springer Nature 2019

Authors and Affiliations

  1. 1.OrthoCarolina Hip and Knee CenterCharlotteUSA

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