下胫腓联合韧带的生物力学有限元分析  

Biomechanical finite element analysis of lower tibiofibular ligament

作　　者：丁军稳 米涛 李泽清[1] 任荣[1] 唐保明[1] 罗伟[1] 李钊伟[1] Ding Junwen;Mi Tao;Li Zeqing;Ren Rong;Tang Baoming;Luo Wei;Li Zhaowei(Affiliated Hospital of Qinghai University,Xining 810000,Qinghai Province,China)

机构地区：[1]青海大学附属医院,青海省西宁市810000

出　　处：《中国组织工程研究》2022年第33期5259-5264,共6页Chinese Journal of Tissue Engineering Research

基　　金：青海省科技厅应用基础研究项目(2020-ZJ-773),项目负责人:李钊伟。

摘　　要：背景:下胫腓联合韧带对维持踝关节稳定性的作用较大,现在越来越多的学者开始注重下胫腓联合韧带的生物力学研究,但单独对下胫腓前韧带、骨间韧带、下胫腓后韧带、横韧带的生物力学研究报道较少。目的:建立一个包括下胫腓联合韧带、胫腓骨远端及距骨的踝关节三维有限元的仿真模型,研究下胫腓联合韧带对踝关节稳定性的影响。方法:基于计算机断层扫描CT图像信息,结合Mimics、Geomagic Studio软件,建立包含胫骨、腓骨、距骨及部分软骨的踝关节仿真模型,再将模型导入有限元分析软件Abaqus中,构建出包含韧带等软组织的踝关节三维有限元模型,最终模拟4种不同类型受力环境下的下胫腓前韧带、骨间韧带、下胫腓后韧带、横韧带的应力分布和应力云图变化情况。结果与结论:①在内旋载荷下,下胫腓后韧带受力最大;在外旋载荷下,下胫腓横韧带受力最大,其次为下胫腓前韧带;在垂直+内旋载荷下,下胫腓后韧带受力最大,且大于内旋载荷下的最大应力值;在垂直+外旋载荷下,下胫腓横韧带受力最大,其次为下胫腓前韧带,且均大于外旋载荷下的最大应力值;②结果表明,下胫腓后韧带在防止踝关节内旋损伤时作用较突出,下胫腓横韧带和前韧带在防止踝关节外旋损伤时作用突出。BACKGROUND:The lower tibiofibular ligament plays a great role in maintaining the stability of the ankle.Now more and more scholars begin to pay attention to the biomechanical research of the lower tibiofibular ligament,but there are few reports on the biomechanical research of the lower tibiofibular anterior ligament,interosseous ligament,lower tibiofibular posterior ligament,and transverse ligament alone.OBJECTIVE:To establish a three-dimensional finite element simulation model of ankle joint including lower tibiofibular ligament,distal tibiofibula,and talus and study the effect of lower tibiofibular ligament on ankle joint stability.METHODS:Based on the image information of computed tomography,combined with Mimics software and Geomagic Studio software,the ankle joint simulation model including tibia,fibula,talus,and some cartilages was established,and then the model was imported into the finite element analysis software Abaqus,so as to construct the three-dimensional finite element model of ankle joint including ligament and other soft tissues.Finally,the specific changes of stress distribution and displacement of anterior tibiofibular ligament,interosseous ligament,posterior tibiofibular ligament,and transverse ligament under four different types of stress environments were simulated.RESULTS AND CONCLUSION:(1)The posterior tibiofibular ligament was the most stressed under internal rotation load.Under external rotation load,the stress of transverse tibiofibular ligament was the largest,followed by anterior tibiofibular ligament.Under vertical+internal rotation load,the stress of posterior tibiofibular ligament was the largest,but the maximum stress value increased compared with simple internal rotation load.Under the vertical+external rotation load,the stress of the lower tibiofibular transverse ligament was the largest,followed by the lower tibiofibular anterior ligament,but the maximum stress value increased compared with the simple external rotation load.(2)It is concluded that posterior tibiofibular ligamen

关 键 词：下胫腓 韧带 生物力学 有限元分析 踝关节 三维有限元模型 

分 类 号：R459.9[医药卫生—治疗学] R319[医药卫生—临床医学]