中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (33): 5259-5264.doi: 10.12307/2022.723

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

下胫腓联合韧带的生物力学有限元分析

丁军稳,米  涛,李泽清,任  荣,唐保明,罗  伟,李钊伟   

  1. 青海大学附属医院,青海省西宁市   810000
  • 收稿日期:2021-09-27 接受日期:2021-11-05 出版日期:2022-11-28 发布日期:2022-03-30
  • 通讯作者: 李钊伟,主任医师,青海大学附属医院创伤骨科,青海省西宁市 810000
  • 作者简介:丁军稳,男,1991年生,江苏省丰县人,汉族,青海大学在读硕士,医师,主要从事骨外科学研究。 米涛,男,1993年生,湖南省辰溪县人,汉族,青海大学在读硕士,医师,主要从事骨外科学研究。
  • 基金资助:
    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

Biomechanical finite element analysis of lower tibiofibular ligament

Ding Junwen, Mi Tao, Li Zeqing, Ren Rong, Tang Baoming, Luo Wei, Li Zhaowei   

  1. Affiliated Hospital of Qinghai University, Xining 810000, Qinghai Province, China
  • Received:2021-09-27 Accepted:2021-11-05 Online:2022-11-28 Published:2022-03-30
  • Contact: Li Zhaowei, Chief physician, Affiliated Hospital of Qinghai University, Xining 810000, Qinghai Province, China
  • About author:Ding Junwen, Master candidate, Physician, Affiliated Hospital of Qinghai University, Xining 810000, Qinghai Province, China Mi Tao, Master candidate, Physician, Affiliated Hospital of Qinghai University, Xining 810000, Qinghai Province, China Ding Junwen and Mi Tao contributed equally to this article.
  • Supported by:
    Applied Basic Research Project of Qinghai Provincial Science and Technology Department, No. 2020-ZJ-773 (to LZW)

摘要:

文题释义:
下胫腓联合韧带:包括下胫腓前韧带、骨间韧带、下胫腓后韧带、横韧带。骨间韧带由骨间膜的远端增厚部分形成。下胫腓骨前韧带起源于胫骨结节的前外侧,止于腓骨脊的前侧。下胫腓后韧带起源于胫骨脊的后侧,止于外踝后缘。下胫腓横韧带组成下胫腓后韧带的下半部分,可视为下胫腓后韧带的延伸,下胫腓联合对维持踝关节的稳定具有重要意义。
有限元法:认为求解区域由许多小节点中相互连接的子域(单元)组成,模型给出了基本方程的近似解。单元(子域)可以划分为不同的尺寸,因此它们可以很好地适应复杂的几何形状、复杂的材料特性和复杂的边界条件。

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。

https://orcid.org/0000-0002-9266-8002 (丁军稳)

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程

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, 生物力学

Abstract: 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 ligament plays a prominent role in preventing ankle pronation injury. The lower tibiofibular transverse ligament and anterior ligament play a prominent role in preventing ankle external rotation injury.

Key words: lower tibiofibula, ligament, biomechanics, finite element analysis, ankle joint, three-dimensional finite element model, biomechanics

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