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Journal of Healthcare Engineering
Volume 2017, Article ID 7056469, 5 pages
https://doi.org/10.1155/2017/7056469
Research Article

Early Spatiotemporal Patterns and Knee Kinematics during Level Walking in Individuals following Total Knee Arthroplasty

1School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
2Department of Orthopaedic Surgery, Guanghua Integrative Medicine Hospital, Shanghai, China
3Gait Analysis Laboratory, Yueyang Hospital of Integrated Chinese and Western Medicine, Shanghai, China

Correspondence should be addressed to Lixi Chu; moc.621@2ixiluhc

Received 12 February 2017; Revised 5 May 2017; Accepted 23 May 2017; Published 31 July 2017

Academic Editor: Liping Wang

Copyright © 2017 Xubo Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. With the aim of investigating the spatiotemporal features of early gait pattern and knee kinematics after total knee arthroplasty and analyzing the association between outcomes of gait analyses and knee kinematic parameters, the relationship between walking and dynamic knee deformity at the early period after total knee arthroplasty was assessed in this study. Methods. Eighteen patients including 14 women and 4 men who underwent total knee arthroplasty were analyzed using three-dimensional gait analysis system to observe gait parameters and values of maximum knee flexion angle (MKFA) during swing phase and knee flexion angle (KFA) and knee valgus angle (KVA) at midstance phase. Results. 3D gait analysis showed that operated side exhibited significantly less total support time and single support time as well as significantly longer swing phase compared with the other side. During walking, the operated side had significantly smaller MKFA and greater KFA and KVA than the nonoperated side. There was moderate to significant correlation between gait pattern and the dynamic knee kinematics. Conclusion. The gait abnormality of patients after TKA was associated with inadequate flexion of knees at swing phase and insufficient extension at stance phase as well as increased range of valgus.