Rezaei Mehdi, Saeedi Hassan, Hajiaghaei Behnam, Khademi-Kalantari Khosro, Arazpour Mokhtar
PhD, Department of Orthotics and Prosthetics, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran.
PhD, Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Science, Tehran, Iran.
J Biomed Phys Eng. 2022 Aug 1;12(4):431-436. doi: 10.31661/jbpe.v0i0.1013. eCollection 2022 Aug.
The knee unloader brace can change loading on knee which may be effective in reducing symptoms and progression of disease in people with knee osteoarthritis. The purpose of this study was to evaluate the effect of a new knee brace during walking in a patient with medial compartment knee osteoarthritis. Two brace types were used: new brace and conventional brace. A pneumatic cuff of novel brace was fitted in the bottom of the medical slipper that was connected to the cuff section of the knee through the tube. After the knee brace is deployed, its force can vary in different stages of the gait. During the heel strike, the weight of the cuff is compressed on the floor, causing the air to flow inside it and entering the volume of air into the knee pad. The results of using this pneumatic knee brace compared with conventional knee braces on a patient showed that in both cases, the open and closed palatal pump, the adduction moment and ROM was decreased in the stance phase. But the three-point knee pressure, however, was less effective in reducing the adduction moment but also reduced the knee ROM. Using novel brace can eliminate the patient's need for painful and costly surgery to reduce the symptoms of osteoarthritis.
膝关节卸载支具可以改变膝关节的负荷，这可能对减轻膝关节骨关节炎患者的症状和疾病进展有效。本研究的目的是评估一种新型膝关节支具对内侧间室膝关节骨关节炎患者行走时的影响。使用了两种支具类型：新型支具和传统支具。新型支具的气动袖带安装在医用拖鞋底部，通过管子与膝关节的袖带部分相连。膝关节支具展开后，其作用力在步态的不同阶段会有所变化。在足跟触地时，袖带的重量压在地面上，导致空气在其中流动并进入膝垫的气腔。在一名患者身上使用这种气动膝关节支具与传统膝关节支具的结果表明，在两种情况下，在站立期，开口和闭口腭泵、内收力矩和关节活动度均降低。然而，三点膝关节压力在减少内收力矩方面效果较差，但也减少了膝关节活动度。使用新型支具可以消除患者为减轻骨关节炎症状而进行痛苦且昂贵手术的需求。
