Biomechanics of Tibia Bone Plate: Finite Element Analysis

• Main Authors: Wei-YunHuang, 黃韋澐
• Other Authors: Chih-Han Chang
• Format: Others
• Language: en_US
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/359yfn

碩士 === 國立成功大學 === 生物醫學工程學系 === 101 === Tibia fractures account for 1% of all fractures in human beings. The main features of the tibia joint surface is to support our body weight, hence, it is extremely important to us and so there is a vital necessity to understand the biomechanical performance of proximal tibia fractures. In clinical treatment, using a locking plate to stabilize and treat the proximal tibia fractures has shown good results. However, there are still examples of failed cases, such as those in which bone plate breakage occur. The aim of this study is to determine the best of three different brands of proximal tibia plates which are commonly used to fix the fracture site, under the simulation of the worst conditions, when using the finite element method, as well as assessing the biomechanics effects of the bone plate when used on a proximal tibia fracture. The results show that the maximum stress value of the bone plates of different brands is located at the position of the screw holes; the stress concentration sites are located on both sides of the fracture fragments. However, increasing the working length of the bone plate can effectively reduce the phenomenon of stress concentration. Compared with the bone plates of the other two brands, the bone plate made by the United Orthopedic Corporation not only has better mechanical properties, but is also able to obtain the same effect as the other brands regarding the promotion of callus formation in the bone healing process.