中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (21): 5445-5451.doi: 10.12307/2026.189

• 人工假体 artificial prosthesis • 上一篇    下一篇

一种高仿真腕关节有限元模型的建立及验证

熊万涛1,刘广伟2,王禹丁1,苏星宇3,崔国鹏3,李永耀1   

  1. 1中国中医科学院望京医院创伤骨科,北京市   100102;2中医正骨技术北京市重点实验室,北京市   100102;3北京中医药大学,北京市   100029
  • 接受日期:2025-07-11 出版日期:2026-07-28 发布日期:2026-03-04
  • 通讯作者: 李永耀,博士,副主任医师,硕士生导师,中国中医科学院望京医院创伤骨科,北京市 100102
  • 作者简介:熊万涛,男,2000年生,湖北省天门市人,汉族,中国中医科学院在读硕士,主要从事骨与软组织损伤方面的研究。
  • 基金资助:
    国家自然科学基金(82274556),项目负责人:李永耀;中国中医科学院望京医院创新团队专项资助项目(WJCXTD-202401),项目负责人:李永耀

Establishment and validation of a high-fidelity finite element model of the wrist joint

Xiong Wantao1, Liu Guangwei2, Wang Yuding1, Su Xingyu3, Cui Guopeng3, Li Yongyao1   

  1. 1Department of Orthopedic Traumatology, Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing 100102, China; 2Beijing Key Laboratory of Bone Setting Technology of Traditional Chinese Medicine, Beijing 100102, China; 3Beijing University of Chinese Medicine, Beijing 100029, China
  • Accepted:2025-07-11 Online:2026-07-28 Published:2026-03-04
  • Contact: Li Yongyao, MD, Associate chief physician, Master’s supervisor, Department of Orthopedic Traumatology, Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing 100102, China
  • About author:Xiong Wantao, Master candidate, Department of Orthopedic Traumatology, Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing 100102, China
  • Supported by:
    National Natural Science Foundation of China, No. 82274556 (to LYY); Special Funding Project for Innovation Team of Wangjing Hospital of China Academy of Chinese Medical Sciences, No. WJCXTD-202401 (to LYY) 

摘要:

文题释义:

腕关节:是人体结构和功能最复杂的关节之一,涉及较多骨骼、韧带、关节囊、肌腱,在人体的日常生活运动中发挥着不可或缺的作用,极易出现损伤。
有限元分析:是一种数值计算方法,用较简单的数学问题代替复杂的物理问题后再求解。通过有限元软件模拟真实物理系统,把连续体离散化为有限个小的、相互连接的单元,并对这些单元进行分析来研究连续体的力学性能。

摘要
背景:目前涉及腕关节的有限元模型研究大多只构建骨骼韧带,较少涉及肌肉及肌腱等组织,仿真性和精确性不足。
目的:建立一种高仿真腕关节有限元模型,以期为深入开展腕关节生物力学研究提供参考。
方法:选取1名33岁成年健康男性志愿者的上肢CT及MRI数据,将所得图像导入 Mimics 20.0中,采用阈值选择、区域增长、图像分割等方法,进行腕关节相关骨骼及肌肉等软组织的重建,通过Solidworks 2020、Hypermesh 14.0对模型进行表面优化处理、曲面片及网格的划分,将赋予材料属性的模型导入ABAQUS 6.13,建立韧带、软骨及软骨接触,建立腕关节三维有限元模型,观测在轴向压力情况下腕关节各结构的应力分布。
结果与结论:①建立了包括尺桡骨、肱骨远端、手腕骨、掌骨、旋前圆肌、旋前方肌、旋后肌、外侧肌群、掌侧肌群、背侧肌群、骨间膜及主要韧带和软骨等结构的三维有限元模型,共包括759 191个单元,245 510个节点,计算并获得了掌骨受轴向压力下桡腕关节的应力分布图,与文献报道尸体研究相对比,验证了此次研究建立模型的真实有效性;②综上,基于人体CT及MRI影像数据,通过计算机软件模拟重建了更完整的腕关节骨与软组织结构,建立了前臂肌肉的起止点及肌肉走行过程中与骨骼之间的接触,得到了更为仿真的腕关节有限元模型。



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: 腕关节, 有限元模型, 生物力学, 建模, 仿真

Abstract: BACKGROUND: Current finite element models of the wrist joint predominantly focus on osseous and ligamentous structures, with insufficient incorporation of musculotendinous components, thereby limiting their fidelity and accuracy.
OBJECTIVE: To establish a high-fidelity finite element model of the wrist joint, providing a reference for in-depth biomechanical investigations.
METHODS: Upper limb CT and MRI data from a 33-year-old healthy male volunteer were imported into Mimics 20.0. Threshold-based selection, region growing, and image segmentation techniques were employed to reconstruct wrist-related bones and soft tissues (including muscles). The model underwent surface optimization, patch generation, and meshing in SolidWorks 2020 and HyperMesh 14.0. Material property assignment and ligament-cartilage contact interfaces were implemented in ABAQUS 6.13 to construct a three-dimensional finite element model of the wrist joint. Stress distribution across wrist structures under axial compression was analyzed.
RESULTS AND CONCLUSION: (1) A three-dimensional finite element model encompassing the ulna, radius, distal humerus, carpal bones, metacarpals, pronator teres, pronator quadratus, supinator, lateral muscle group, volar muscle group, dorsal muscle group, interosseous membrane, major ligaments, and cartilage structures was successfully established, comprising 759 191 elements and 245 510 nodes. The stress distribution pattern at the radiocarpal joint under axial compressive loading on the metacarpals was computationally analyzed and compared with cadaveric studies reported in literature, thereby validating the authenticity and effectiveness of the current model. (2) This investigation employed CT and MRI data to simulate and reconstruct comprehensive wrist joint osseous and soft tissue structures through computational methodologies. The model precisely delineates starting point and ending point of the muscle and characterizes contact interactions between forearm musculature and skeletal elements during muscle pathway simulations, ultimately resulting in a more realistic finite element model of the wrist joint.

Key words: "> , wrist joint, finite element model, biomechanics, modeling, simulation

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