alexa Dependence on Walking Aids and Patient-Reported Outcomes after Total Knee Arthroplasty | OMICS International | Abstract
ISSN: 2167-7921

Journal of Arthritis
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Research Article

Dependence on Walking Aids and Patient-Reported Outcomes after Total Knee Arthroplasty

Jasvinder A Singh1-3* and David G Lewallen3
1Medicine Service and Center for Surgical Medical Acute care Research and Transitions (C-SMART), Birmingham VA Medical Center, Birmingham, AL, USA
2Department of Medicine at School of Medicine, and Division of Epidemiology at School of Public Health, University of Alabama, Birmingham, AL, USA
3Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, MN, USA
Corresponding Author : Jasvinder AS, MBBS, MPH
University of Alabama
Faculty Office Tower 805B
510 20th Street S, Birmingham
AL 35294, USA
Tel: 205-996-5885
Fax: 205-996-9685
E-mail: [email protected]
Received February 23, 2015; Accepted April 10, 2015; Published April 20, 2015
Citation: Singh JA, Lewallen DG (2015) Dependence on Walking Aids and Patient-Reported Outcomes after Total Knee Arthroplasty. J Arthritis 4:149. doi:10.4172/2167-7921.1000149
Copyright: © 2015 Singh JA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Objective: To assess the association of post-arthroplasty dependence on walking aids with outcomes after primary TKA. Methods: We used prospectively collected Total Joint Registry data from 1993-2005 to assess the association of dependence on walking aids (some, complete) with moderate-severe pain and activity limitations 2- and 5-years after primary TKA. We used multivariable-adjusted multinomial logistic regression analyses adjusted for age, sex, Deyo-Charlson index, anxiety, depression, body mass index, income, distance to medical center, operative diagnosis, ASA class, preoperative pain and preoperative activity limitation. Results: 7,139 patients provided 2-year and 4,234 provided 5-year data. Some vs. complete dependence on walking aids post-primary TKA was common: 4.9% and 6.2% at 2-years; 6.3% and 8.2% at 5-years. Compared to no dependence on walking aids, patients with dependence on walking aids had significantly higher odds (95% confidence interval; p-value) of: (1) moderate-severe pain at 2-years, 1.96 (1.17, 3.28; p=0.01) and 1.99 at 5-years (1.14, 3.48; p<0.001), associated with some dependence; and with complete dependence, 1.94 (1.16, 3.24; p=0.012) at 2-years and 2.92 (1.73, 4.91; p<0.001) at 5-years; and (2) moderate-severe activity limitation, 9.03 (5.93, 13.80; p<0.001) and 11.25 (7.11, 17.80; p<0.001) at 5-years, with some dependence on walking aids at 2-years; and with complete dependence, 16.09 (9.45, 27.40; p<0.001) at 2-years and 13.31 (7.78, 23.20; p<0.001) at 5-years. Conclusions: Dependence on walking aids was associated with significantly higher risk of moderate-severe pain and activity limitation after primary TKA. Studies of mediators of this association can help us target modifiable factors and improve TKA outcomes.


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