摘要
目的探究踝关节不稳中距腓前韧带(anterior talofibular ligament,ATFL)的厚度与弹性模量对踝关节稳定性的影响,为踝关节不稳患者的诊断提供参考依据。方法建立踝关节三维有限元模型,改变ATFL的厚度与弹性模量,计算踝关节前后向刚度(ankle anteroposterior stiffness,AAS),并作为量化指标评估踝关节稳定性。结果ATFL厚度在0.78~2.31 mm范围内引起AAS的大幅度变化,且两者关系呈S形曲线;ATFL弹性模量在60~400 MPa变化范围,AAS随韧带弹性模量增加快速上升。结论ATFL厚度与弹性模量均会影响踝关节的稳定性。
Objective To investigate the effect of thickness and elastic modulus of anterior talofibular ligament(ATFL)on ankle stability,and provide references for ankle instability diagnosis.Methods The threedimensional(3D)model of ankle joint was established.By changing the thickness and elastic modulus of ATFL,the ankle anteroposterior stiffness(AAS)was calculated and used as a quantitative indicator to assess ankle stability.Results AAS changed significantly when the thickness of ATFL was in the range of 0.78 mm to 2.31 mm,and such relationship was in an S-shaped curve.AAS significantly increased with the elastic modulus of ligament increasing,when the elastic modulus of ATFL was in the range of 60 MPa to 400 MPa.Conclusions Both the thickness and elastic modulus of ATFL will influence the stability of ankle joint.
作者
彭琳晶
王心桐
干耀恺
李翊铭
孔康麟
姚怡飞
ENG Linjing;WANG Xintong;GAN Yaokai;LI Yiming;KONG Kanglin;YAO Yifei(School of Biomedical Engineering,Shanghai Jiao Tong University,Shanghai 200030,China;Department of Orthopedics,Shanghai Ninth People’s Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai 200011,China;Department of Mechanical Engineering,Georgia Institute of Technology,Atlanta 30332,USA)
出处
《医用生物力学》
CAS
CSCD
北大核心
2023年第4期736-741,共6页
Journal of Medical Biomechanics
基金
上海浦江人才计划项目(19PJ1406400)
军队基础加强计划重点基础研究项目(2020-JCJQ-ZD-264)
上海交通大学数字医学教育部工程研究中心医工交叉种子基金项目(20210401)。
关键词
踝关节不稳
距腓前韧带
踝关节前后向刚度
ankle instability
anterior talofibular ligament(ATFL)
ankle anteroposterior stiffness(AAS)
