Effects of Subtalar Arthrodesis on the Strains of the Lateral Ligaments and Talocrural Articular Contact Mechanics Using a Robot-Based Joint Testing System

• Main Authors: Jyun-Min Wang, 王鈞民
• Other Authors: 呂東武
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/ufptf5

碩士 === 國立臺灣大學 === 醫學工程學研究所 === 106 === The ankle joint injured more often in sports activity rather than occupational injury. Sever ankle joint injury might lead to loss of function in ankle joint. In all of the ankle injuries, ankle sprain stands more than 80%. About 77% of the sprain in ankle joint are the lateral ankle sprain. And, tearing ATFL involve in 73% of all the lateral ankle sprain. If the ankle sprain is not treated properly, 73% of the athletes will encounter ankle sprain again, moreover, 59% of the athletes will have residual symptoms and disability significantly. Ankle sustain weight bearing in daily activity. However, not like another weight-bearing joint, the prevalence of symptomatic arthritis in the ankle is much lower than the knee and hip. Studying particular biomechanical property in ankle joint might reveal how different ankle joint sustain weight during daily activity. This study aims to find the interaction between articular surface and the lateral ligaments in the ankle joint and the effect of subtalar joint arthrodesis. Kinetic and kinematic data recorded during anterior, posterior drawer test and varus, valgus tilt test. We found that arthrodesis results in stress concentration in several components during tests. This might be the result of the restrict motion from subtalar joint arthrodesis which implies that talus motion is highly relative to the biomechanics of loading distribution. Patients who had this surgery might be the caution to avoid unexpected loading in ligaments or articular surface.