关节界面剪切应力问题研究  

STUDIES ON PROBLEMS OF HIP-JOINTINTERFACE SHEAR STRESSES

作　　者：王以进[1] 杜伟明 王公林[1] 李永丰[1] 戴尅戎[2] 郑泽坤 洪汉洲 卢世壁[3] 孙燕群 

机构地区：[1]上海科技大学生物力学研究室 [2]上海第二医科大学附属第九人民医院 [3]中国人民解放军总医院骨科

出　　处：《中国生物医学工程学报》1990年第4期247-252,共6页Chinese Journal of Biomedical Engineering

摘　　要：本文对植入达一周至三个月的41只犬和45只兔子的髋关节试件界面剪切应力进行了研究。全部关节置换植入动物后均进行关节—骨水泥—骨之间界面应力实验。在压缩应力作用下,给出了关节—骨水泥—骨界面的剪切应力以及界面之间的摩擦力。同时本文还讨论了无骨水泥固定时,多孔材料关节由于骨组织长入关节牢固固定时,骨—假体系统的界面应力问题。<ABSTRACT> This paper studied problems of interface shear stresses of hip-joint implant in 41 canine and 45 rabbit specimens 1-3 months after insertion. During the process of canine total hip replacement, several dogs were sacri- ficed, and interface shear stresses of hip-joint (joint-cement-bone interface ) studicd. The shear stresses are determined at the joint-cement-bone inter- face by compressive stresses on the sides of roughnesses, as well as by fric- tional forces at the interfacing surfaces themselves. Besides This paper discusses the interface shear stresses of the bone-prosthesis system during fixation without cement and strong fixation due to ingrowth of bonetissue into porous-material-made joint.

关 键 词：髋假体 界面应力 骨-假体系统 

分 类 号：R318.17[医药卫生—生物医学工程]