The Impact of Morbid Obesity on Patient Outcomes After Total Knee Arthroplasty

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• 作者：Vaishnav Rajgopal ; Robert B. Bourne ; Bert M. Chesworth ; Steven J. MacDonald ; Richard W. McCalden ; Cecil H. Rorabeck
• 关键词：nee arthroplasty ; clinical outcome ; obesity
• 刊名：The Journal of Arthroplasty
• 出版年：2008
• 出版时间：September 2008
• 年：2008
• 卷：23
• 期：6
• 页码：795-800
• 全文大小：163 K

文摘

Five hundred fifty patients who underwent primary total knee arthroplasty between 1987 and 2004 with a primary diagnosis of osteoarthritis and 1-year outcome data (Western Ontario and McMaster Osteoarthritis Index [WOMAC]) were evaluated. Patients were stratified into body mass index categories based on the World Health Organization classification of obesity. Patients were dichotomized into a class III morbidly obese group and a non–morbidly obese group. Independent t test and multivariable linear regression were used to determine if a difference existed in the 1-year WOMAC outcome between morbidly obese patients and all other patients. Although 1-year outcomes were worse for morbidly obese patients (P < .05), they showed greater improvement in function compared with non–morbidly obese patients. Morbid obesity does not affect 1-year outcomes in patients who have had a total knee arthroplasty.