Effect of total knee replacement surgery and postoperative 12 month home exercise program on gait parameters
Heikkilä, A., Sevander-Kreus, N., Häkkinen, A., Vuorenmaa, M., Salo, P., Pamilo, K., & Jari, Y. (2017). Effect of total knee replacement surgery and postoperative 12 month home exercise program on gait parameters. Gait and Posture, 53, 92-97. doi:10.1016/j.gaitpost.2017.01.004
Published inGait and Posture
© 2017 Elsevier B.V. This is a final draft version of an article whose final and definitive form has been published by Elsevier. Published in this repository with the kind permission of the publisher.
Objective To evaluate the effects of surgery and a postoperative progressive home exercise program on gait parameters among individuals operated with total knee arthroplasty. Design Single blinded randomized controlled trial. Subjects 108 patients (84 females, 24 males, mean age 69 years). Interventions Patients were equally randomized into an exercise group (EG) and control group (CG). The 12-months progressive home exercise program starting two months postoperatively was compared to usual care. Methods Gait analysis was performed using the Gaitrite electronic walkway system. In addition, knee extension and flexion strength were measured by a dynamometer preoperatively, and pain on visual analog scale (VAS) at two months and 14 months postoperatively. Results At the 12–month follow-up, maximal gait velocity (p = 0.006), cadence (p = 0.003) and stance time (p = 0.039) showed a greater increase among EG than CG. All the other gait parameters improved among both groups, but with not statistically discernible difference between groups. Weak correlations were found between changes in maximal gait velocity and the knee extension (r = −0.31, p = 0.002), flexion strength (r = 0.28, p = 0.004) and pain during loading (r = −0.27, p = 0.005) values. Conclusion The intervention produced statistically significant changes in maximal gait velocity, cadence and stance times in the exercise group compared to controls. Although the average change was small it is of importance that biggest changes occurred in those with low performance. ...
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