基于内侧半月板结构设计的仿生假体有限元分析  

Finite element analysis of bionic prosthesis based on design of medial meniscus structure

作　　者：左建林[1] 刘恩渤 贾政斌 徐圣昊 肖建林[1] ZUO Jian-lin;LIU En-bo;JIA Zheng-bin;XU Sheng-hao;XIAO Jian-lin(Department of Orthopaedics,China-Japan Union Hospital of Jilin University,Changchun 130033,China;School of Biological Science and Medical Engineering,Beihang University,Beijing 100191,China;Key Laboratory for Biomechanics and Mechanobiology,Ministry of Education,Beihang University,Beijing 100191,China)

机构地区：[1]吉林大学中日联谊医院骨科,长春130033 [2]北京航空航天大学生物与医学工程学院,北京100191 [3]北京航空航天大学生物力学与力生物学教育部重点实验室,北京100191

出　　处：《吉林大学学报（工学版）》2021年第6期2319-2324,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技发展计划项目(20190304124YY);吉林省卫生科研人才专项项目(2020SCZ63)。

摘　　要：基于人体内侧半月板结构设计了游离式仿生内侧半月板假体,置换临床中无法修复的半月板。通过三维有限元分析方法,对假体进行了力学分析,验证了其可行性。数据结果显示,与健康半月板相比,半月板假体应力较高,两组模型高应力分布区域均在内侧中后部;所设计的半月板假体与健康半月板具有相似的生物力学性能。数据结果验证了假体的主要优势在于,其不需要额外固定模式,因而避免了因假体固定失效造成的失败。Based on the structure of the human medial meniscus, we designed a free bionic medial meniscus prosthesis to replace the irreparable meniscus in clinic treatment. The feasibility of the prosthesis was verified by a three-dimensional finite element analysis method. The data results show higher stresses in the meniscus prosthesis compared to the wholesome meniscus, with the region of high stress distribution in the medial middle and posterior in both models. The results of the study illustrate that the designed meniscus prosthesis has similar biomechanical properties to the healthy meniscus. The main advantage of the data results validating the prosthesis is that no supplementary fixation pattern is required, avoiding failure due to prosthetic fixation failure.

关 键 词：仿生工程 半月板 生物力学 有限元分析 

分 类 号：R314[医药卫生—基础医学]