Design and Evaluation of a New Type of Knee Orthosis for Improving the Performance of Subjects with Knee Osteoarthritis
Design and Evaluation of a New Type of Knee Orthosis for Improving the Performance of Subjects with Knee Osteoarthritis
Seyed Mohsen Mirbod
ABSTRACT
Knee joint osteoarthritis (OA) is a disease which influences the performance of the joint during walking. Various types of knee orthosis have been designed to improve the performance of the subjects, however, such cases are often associate with post-operational complications. The aim of this study is to design an orthosis which is easy to use, economical and effective. A new knee orthosis was designed to improve the performance of OA patients during standing and walking. Two subjects with knee osteoarthritis recruited in this research study. The gait performance of the subjects and their stability to stand was evaluated by the use of motion analysis system and a force plate (Kistler). The mediolateral excursion of the knee joint decreased while walking with the knee orthosis in contrast to normal walking. Moreover, the mediolateral moment applied on the knee joint decreased significantly. This new design of the orthosis improves the performance of the subjects during walking. It carried same performance as that of the knee cage, and additionally is more cosmesis, ease in use and is economical.
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