中国临床解剖学杂志 ›› 2021, Vol. 39 ›› Issue (5): 586-592.doi: 10.13418/j.issn.1001-165x.2021.05.016

• 临床生物力学 • 上一篇    下一篇

手腕部不同载荷状态下舟月骨间韧带应力分布分析

魏明杰1, 许育健3, 吴一芃2, 王腾2, 吴欢3, 袁礼波1, 唐文宝1, 郭孝菊1, 徐永清2   

  1. 1.昆明医科大学研究生院,  昆明   650000; 2.中国人民解放军联勤保障部队第九二O医院骨科,  昆明 650032
    3.陆军军医大学研究生院,  重庆   400000
  • 收稿日期:2020-03-30 出版日期:2021-09-25 发布日期:2021-09-30
  • 通讯作者: 徐永清,教授,主任医师,博士生导师,E-mail: xuyongqingkm @163.net
  • 作者简介:魏明杰(1992-),男,安徽滁州人,在读硕士研究生,医师,主要研究方向:显微外科和创伤骨科,E-mail:15288368413@163.com
  • 基金资助:
    云南省创伤骨科临床医学中心(ZX20191001)

Stress distribution of the scapholunate interosseous ligament under different load conditions on the wrist

Wei Mingjie1, Xu Yujian3, Wu Yipeng2, Wang Teng2, Wu Huan3, Yuan Libo1, Tang Wenbao1, Guo Xiaojv1, Xu Yongqing2   

  1. 1. Postgraduate Department of Kunming Medical University, Kunming 650000, China;2. Department of Orthopedics, the 920th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Kunming 650032, China; 3. The Graduate School, Army Medical University, Chongqing 400000, China
  • Received:2020-03-30 Online:2021-09-25 Published:2021-09-30

摘要: 目的 建立腕关节三维有限元模型研究腕关节舟月骨间韧带(Scapholunate interosseous ligament,SLIL)在腕部不同运动中的应力分布。  方法 选取正常腕关节CT数据,将其导入Mimics软件构建腕关节三维有限元模型,分析腕关节不同运动方向受力时的SLIL应力分布。  结果 随背伸角度增大,SLIL应力增大,背伸角度增加到 90°时,SLIL受到最大应力为1.3787 MPa。背伸角度为 30°时,腕关节掌屈时SLIL受到的最大应力为 0.1596 MPa,掌屈角度增加到 90°时,SLIL的最大应力降低至0.2452 MPa。桡偏 25°时,SLIL受到的最大应力为0.8145 MPa,尺偏 25°时,SLIL受到的最大应力为 0.1356 MPa。腕关节做桡侧受力 20N 时,SLIL受到的最大应力为 0.4465 MPa,尺侧受力 20N 时,SLIL受到的最大应力为 0.4635 MPa。   结论 腕关节三维有限元模型可以模拟SLIL在腕部不同运动中的受力情况。腕关节背伸角度达90°时,SLIL的应力最大。做尺偏、桡偏动作时,相同偏转角度下,SLIL桡偏时最大应力是尺偏最大应力的6倍左右。

关键词:  , 腕关节,  舟骨,  月骨,  骨间韧带,  有限元分析

Abstract: Objective To study the stress distribution of the scapholunate interosseous ligament(SLIL) of the wrist joint during different movements of the wrist by established a three-dimensional finite element model of the wrist joint. Methods The CT data of normal wrist joints were selected and imported into Mimics software to construct a three-dimensional finite element model of the wrist joint.. The SLIL stress distribution of the wrist joint under different motion directions was analyzed. Results With the increasing of the dorsiflexion angle, the SLIL stress increased. When the dorsiflexion angle increased to 90°, the maximum stress of SLIL was 1.3787 MPa. When the dorsiflexion angle was 30°, the maximum stress of SLIL was 0.1596 MPa. When the angle of palmar curvature increased to 90°, the maximum stress of SLIL reduced to 0.2452 MPa. The maximum stress of SLIL was 0.8145 MPa at 25° radial deviation, and 0.1356 MPa at 25° ulnar deviation. The maximum stress of SLIL was 0.4465 MPa when the radial force was applied to the wrist joints at 20 N, and 0.4635 MPa when the ulnar force was applied at 20 N. Conclusions The three-dimensional finite element model of the wrist joint can simulate the force of SLIL in different wrist movements. The stress of SLIL is maximum when the wrist joint dorsiflexion angle reaches 90°. When doing ulnar deviation and radial deviation, the maximum stress of SLIL radial deviation is about 6 times of the maximum stress of ulnar deviation at the same deflection angle.

Key words: Carpal joints,  Scaphoid bone,  Lunate bone,  Interosseous ligament,  Finite element analysis

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