中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (31): 4658-4664.doi: 10.3969/j.issn.2095-4344.2016.31.014

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

膝关节半月板三维有限元模型的动态仿真生物力学分析

陈文栋1,杨 光2   

  1. 1昆明医科大学第一附属医院麻醉科,云南省昆明市 650032;2常州市第四人民医院骨科,江苏省常州市   213001
  • 修回日期:2016-05-10 出版日期:2016-07-22 发布日期:2016-07-22
  • 通讯作者: 陈文栋,博士,主治医师,昆明医科大学第一附属医院麻醉科,云南省昆明市 650032
  • 作者简介:陈文栋,男,1981年生,云南省剑川县人,白族,2012年昆明医科大学毕业,博士,主治医师,主要从事生物医学系统建模及仿真方面的研究。
  • 基金资助:

    常州市科技局应用基础研究计划项目(CJ20130049)

Biomechanical analysis of dynamic simulation of three dimensional finite element models of knee joint meniscus

Chen Wen-dong1, Yang Guang2   

  1. 1Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China; 2Department of Orthopedics, Changzhou Fourth People’s Hospital, Changzhou 213001, Jiangsu Province, China
  • Revised:2016-05-10 Online:2016-07-22 Published:2016-07-22
  • Contact: Chen Wen-dong, M.D., Attending physician, Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • About author:Chen Wen-dong, M.D., Attending physician, Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • Supported by:

    the Applied Basic Research Project of Changzhou Municipal Science and Technology Bureau, No. CJ20130049

摘要:

文章快速阅读:

 
 
文题释义:
半月板三维有限元生物力学模型:随着计算机及相关软件技术的进步,有限元法发展非常迅速,在骨科生物力学领域中占有重要地位,成为了解人体骨骼力学性能非常有用的工具,模型的条件越来越接近正常标本,结构更加可信,并取得了显著研究成果。然而,半月板的生物力学研究一直是众多临床科研工作者的研究热点。
动态仿真:是一个接近真实载荷屈曲过程的根据膝关节半月板相似性能进行的生物力学模拟过程,在该过程中获取膝关节屈曲0°,30°,60°,90°时的生物力学指标,揭示半月板的生物力学变化过程,有助于更好地了解半月板正常的生物力学功能变化规律。
 
摘要
背景:目前虽然膝关节半月板三维有限元生物力学分析的研究已有报道,对半月板的生物力学变化过程有了一定的认识,但动态仿真模拟在同一载荷条件下屈曲过程中膝关节半月板生物力学分析的报道较少。
目的:应用有限元法动态仿真模拟并分析不同屈曲角度下膝关节半月板的生物力学特性。
方法:基于正常成人志愿者膝关节MRI数据,运用医学有限元仿真软件Mimics 10.01及逆向工程软件Rapidform XOR3重建全膝关节半月板三维有限元模型,并运用高级有限元分析软件Abaqus 6.10-1仿真模拟分析该模型在承载300 N垂直载荷下屈曲过程中的生物力学变化。
结果与结论:①膝关节屈曲0°,30°,60°,90°时,随着角度的增加,最大应力点从内侧半月板后角胫骨附着面前缘移动到外侧半月板前角胫骨附着面后缘,且外侧半月板应力范围大于内侧半月板;②膝关节屈曲0°,30°,60°,90°时,随着角度的增加,最大位移点从接近内侧半月板内缘中点的地方移动到外侧半月板前外上缘,且外侧半月板的位移范围较内侧半月板位移大;③结果提示,半月板是膝关节屈曲过程中主要的承重结构,运动过程中外侧半月板的损伤率大于内侧半月板,与此处应力及位移较大有关。

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

ORCID:
0000-0002-9388-7653(陈文栋)

关键词: 骨科植入物, 数字化骨科, 膝关节, 半月板, 三维有限元, 动态仿真, 生物力学, 位移, 应力

Abstract:

BACKGROUND: At present, although the study of three-dimensional finite element biomechanical analysis of knee joint meniscus has been reported and we have a certain understanding of the biomechanical changes of the meniscus, but the dynamic simulation of the knee meniscus in the same load conditions in the process of biomechanical analysis of the knee meniscus is less reported.

OBJECTIVE: To analyze the biomechanical characteristics of the knee joint meniscus under different flexion angle by using analogue simulation of finite element method.
METHODS: Based on knee MRI data of the normal adult volunteers, the medicine finite element simulation software Mimics10.01 and reverse engineering software Rapidform XOR3 were utilized to reconstruct three-dimensional finite element model of knee joint meniscus. The advanced finite element analysis software Abaqus6.10-1 was utilized for analogue simulation and for analyzing biomechanical changes during flexion under vertical load of 300 N.       
RESULTS AND CONCLUSION: (1) While the knee joint flexed at 0°, 30°, 60° and 90°, with the increase of angle, maximum stress point moved from the anterior edge of tibia attachment surface of the medial meniscus posterior angle to the posterior edge of tibia attachment surface of the lateral meniscus anterior angle, and the stress range of lateral meniscus was greater than that of the medial meniscus. (2) The maximal displacement point moved from the midpoint of inner edge of the medial meniscus to the front outer-upper edge of the lateral meniscus at knee flexion of 0°, 30°, 60° and 90°. Moreover, the range of displacement of lateral meniscus was bigger than the medial meniscus. (3) These findings suggest that the meniscus is the major bearing structure in the process of knee flexion. The lateral meniscus injury rate is greater than the medial meniscus in process of exercise, which is associated with large stress and displacement.

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

Key words: Knee Joint, Menisci, Tibial, Biomechanics, Finite Element Analysis, Tissue Engineering

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