Stress Analysis and Shape Design of a Femoral Hip Prosthesis

作     者：YANG Zheng-ming YU Xue-zhong GUO Yi-mu YAN Shi-gui 

作者机构：Second Affiliated Hospital College of Medicine Zhejiang University Hangzhou 310009 China Department of Engineering Mechanics Zhejiang University Hangzhou 310027 China 

出 版 物：《Chinese Journal of Biomedical Engineering(English Edition)》 (中国生物医学工程学报（英文版）)

年 卷 期：2011年第20卷第2期

页      码：67-74页

摘      要：Objective:To study the stress distribution of the femoral hip prosthesis after the hip joint ***:After the hip joint replacement,when the femur and prosthesis are considered as concentric cylinders with perfectly banded interface,a relatively perfect theoretical model of simulating the interfacial stress transfer is ***:The maximum interfacial shear stress occured at Z=*** the cross-section of the femoral neck,interfacial shear stress decreased exponentially with the increases of the *** stress became very small at Z>0.1 m,which meant that the shear stress at the far end of the femoral hip prosthesis was very *** order to avoid the stress concentration and femoral hip prosthesis sinking,interfacial stress must remain constant and balanced with the pressure load at Z=*** radius of the femoral hip prosthesis changed with interfacial shear *** maximum value of the radius occured at Z=0,then it decreased at ***,a=18.2 mm at Z=10 mm,a=5.36 mm at Z=98 mm,these are ideal ***:A theoretical model of simulating the interfacial stress is established when the femur and prosthesis are considered as concentric *** distributions of the interfacial shear and radial stresses with the axial positions are obtained.A theoretical reference for the design of the prosthesis is provided.

主 题 词：大腿骨的新潮的关节 强调分析 修复术 尺寸设计 

学科分类：08[工学] 080501[080501] 0805[工学-能源动力学] 080502[080502] 

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