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. 2013 Oct;28(9):1561-4.
doi: 10.1016/j.arth.2013.02.034. Epub 2013 Mar 21.

Factors associated with poor outcomes following unicompartmental knee arthroplasty: redefining the "classic" indications for surgery

Scott A J Thompson  1 , Barthelemy Liabaud, Kate W Nellans, Jeffrey A Geller
Affiliations

Factors associated with poor outcomes following unicompartmental knee arthroplasty: redefining the "classic" indications for surgery

Scott A J Thompson et al. J Arthroplasty. 2013 Oct.

Abstract

Indications for UKA for isolated osteoarthritis of the knee remain controversial. Two hundred twenty-nine UKA that were performed at our institution were evaluated for which factors were associated with a poor outcome. BMI >35 was correlated with lower KSS scores than patients with BMI <35. In contrast to prior reports, patients younger than 60 years old had higher scores than patients 60 years and older at 2 years. Women had an unacceptably high short-term revision rate for any reason of 6.5%. Popularity for UKA has increased, and a more in depth investigation of predictors of poor outcomes demonstrates that younger patients appear to have better results. Obese patients continue to improve up to 2 years after surgery and should not be precluded from undergoing UKA.

Keywords: BMI; indications for surgery; patients' age; unicompartmental knee arthroplasty.

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