Biomechanics of knee joint during forward-walking and drop-landing after anterior cruciate ligament reconstruction:finite element and gait analysis  

前交叉韧带重建后前行-跳跃着陆过程的膝关节生物力学:有限元模拟与步态分析

作　　者：Midiya Khademi Mohammad Haghpanahi Mohammad Razi Ali Sharifnezhad Mohammad Nikkhoo 

机构地区：[1]Department of Biomedical Engineering,Science and Research Branch,Islamic Azad University,Tehran 1477893855,Iran [2]Department of Mechanical Engineering,Iran University of Science and Technology,Tehran 1684613114,Iran [3]Department of Orthopedics,Iran University of Medical Sciences,Tehran 1449614535,Iran [4]Department of Sport Biomechanics and Technology,Sport Science Research Institute,Tehran 1587958711,Iran

出　　处：《Acta Mechanica Sinica》2024年第11期53-75,共23页力学学报（英文版）

摘　　要：The anterior cruciate ligament plays a crucial role in maintaining stability within the knee joint,particularly for athletes who frequently experience its rupture.This study presents a novel approach using personalized three-dimensional(3D)parametric finite element modeling of the knee joint to simulate the treatment following anterior cruciate ligament reconstruction(ACLR)in both forward walking(FW)and drop landing(DL)tasks.The study encompasses two distinct cohorts:five healthy athletes and five ACLR patients.Biomechanical motion analysis was conducted on both cohorts,with the ACLR patient group evaluated at 6 and 9 months post-surgery.A comprehensive 3D parametric model of the knee joint was meticulously crafted.The findings reveal a notable reduction in stress on crucial knee structures such as the autograft,meniscus,and cartilages over time for both FW and DL tasks following ACLR,with a reduction in tissue tension of approximately 9.5%and 37%for FW and DL,respectively.This personalized model not only facilitates the investigation of knee joint tissue biomechanics post-ACLR but also aids in estimating the return-to-sports timeline for patients.By accommodating individual tissue geometries and incorporating patient-specific kinetic data,this model enhances our comprehension of post-ACLR biomechanics across various functional tasks,thereby optimizing rehabilitation strategies.前交叉韧带在维持膝关节稳定性中扮演着至关重要的角色,尤其是对于经常发生断裂的运动员来说.本研究使用个性化的3D参数化有限元模拟前交叉韧带重建(ACLR)后的治疗过程,包括前行(FW)和跳跃着陆(DL)任务.该研究涵盖两个不同的群体:五名健康运动员和五名ACLR患者.对这两个群体进行了生物力学运动分析,ACLR患者组在手术后6个月和9个月进行了评估.精心制作了膝关节的综合3D参数化模型.研究发现,随着时间的推移,对于FW和DL任务,ACLR后关键膝关节结构上的应力显著减少,如自体移植物、半月板和软骨,组织张力分别减少了约9.5%和37%.这种个性化模型不仅有助于调查ACLR后膝关节组织的生物力学,还有助于估计患者恢复运动的时间线.通过考虑个体组织几何形状并结合患者特定的动力学数据,该模型增强了我们对ACLR后各种功能任务生物力学的理解,从而优化康复策略.

关 键 词：Anterior cruciate ligament reconstruction(ACLR) Forward walking(FW) Drop landing(DL) Knee finite element model Gait analysis 

分 类 号：R68[医药卫生—骨科学]