Effect of Obesity on Component Alignment in Total Knee Arthroplasty

Obesity is routinely cited as a negative predictive factor for outcomes after total knee arthroplasty (TKA), but the direct mechanism responsible for this relationship has not been described. One possible explanation is a propensity for component malalignment in obese patients that is attributable t...

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Bibliographic Details
Published in:The Ochsner journal 2018-01, Vol.18 (3), p.226-229
Main Authors: Ojard, Connor, Habashy, Alexander, Meyer, Mark, Chimento, George, Ochsner, John L
Format: Article
Language:English
Subjects:
Body mass index
Joint surgery
Knee
Mortality
Obesity
Original Research
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Summary:Obesity is routinely cited as a negative predictive factor for outcomes after total knee arthroplasty (TKA), but the direct mechanism responsible for this relationship has not been described. One possible explanation is a propensity for component malalignment in obese patients that is attributable to difficulty with surgical exposure. This study evaluated the effect of obesity on TKA component alignment in 251 primary TKAs during a 12-month period at a single center in 2009. Postoperative component alignment was retrospectively measured and compared between patients defined as obese (body mass index [BMI] ≥30 kg/m ) and patients defined as nonobese (BMI
ISSN:1524-5012
1524-5012
DOI:10.31486/toj.18.0005