Grzegorz Konieczny, Katarzyna Leżoń, Zdzisława Wrzosek, Michał Sokołowski

Grzegorz Konieczny, Katarzyna Leżoń, Zdzisława Wrzosek, Michał Sokołowski – The assessment of gait deviations in patients with knee arthritis using the ground reaction forces analysis. Fizjoterapia Polska 2006; 6(4); 317-321

Abstract
Background. The purpose of this study is to analyze the objective gait parameters for the subjects with knee arthritis using ground reaction forces analysis. Material and methods. The gait analysis was performed on 31 subjects with unilateral knee arthritis with use of Pressure Distribution Measurement System (PDM-S) force-plate. The first peak force, the second peak force, the loading rate, the push-off rate, the stance time, and the distribution of pressure across the foot were analyzed. The VAS score was also obtained. Results. The obtained results were compared with outcomes of gait analysis of healthy population presented by J. L. McCrory. The first and the second peak force were lower for the limb with arthritic knee. The stance time for the limb with arthritic knee was lower. The pressure measured at the heel, and rate of loading were also lower for the limb with arthritic knee. Conclusion. The osteoarthritis of knee leads to substantial alterations in gait. Gait deviations contribute mainly to pain associated with osteoarthritis of knee joint. The gait analysis with use of ground reaction force-plates is valuable method in functional assessment of knee arthritis.

Key words:
gait analysis, arthritis, knee

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