Predictors of moderate-severe functional limitation 2 and 5 years after revision total knee arthroplasty
- PMID: 20888546
- PMCID: PMC3895366
- DOI: 10.1016/j.arth.2009.07.020
Predictors of moderate-severe functional limitation 2 and 5 years after revision total knee arthroplasty
Abstract
In patients who underwent revision TKA from 1993 to 2005 and responded to follow-up questionnaires 2 or 5 years postrevision TKA, we studied whether body mass index (BMI), comorbidity (measured by validated Deyo-Charlson index), sex, and age predict activity limitation 2 and 5 years after revision TKA. Overall moderate-severe activity limitation was defined as 2 or more activities (walking, stairs, rising chair) with moderate-severe limitation. Multivariable logistic regressions also adjusted for income, diagnosis, and distance from medical center and American Society of Anesthesiologists physical status score. The prevalence of overall moderate-severe activity limitation was high: 46.5% (677/1456) at 2 years and 50.5% (420/832) at 5 years postrevision TKA. At both 2 and 5 years of follow-up, BMI of 40 or higher, higher Deyo-Charlson score, female sex, and age greater than 80 years, each significantly predicted higher odds of moderate-severe overall activity limitation.
Copyright © 2010. Published by Elsevier Inc.
Conflict of interest statement
Each author certifies that his or her institution has approved the human protocol for this investigation and that all investigations were conducted in conformity with ethical principles of research.
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