手腕部不同载荷状态下舟月骨间韧带应力分布分析  

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

作　　者：魏明杰 许育健 吴一芃 王腾 吴欢 袁礼波 唐文宝 郭孝菊 徐永清[2] Wei Mingjie;Xu Yujian;Wu Yipeng;Wang Teng;Wu Huan;Yuan Libo;Tang Wenbao;Guo Xiaojv;XuYongqing(Postgraduate Department of Kunming Medical University,Kunming 650000,China;Department of Orthopedics,the 920th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army,Kunming 650032,China;The Graduate School,Army Medical University,Chongqing 400000,China)

机构地区：[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

出　　处：《中国临床解剖学杂志》2021年第5期586-592,共7页Chinese Journal of Clinical Anatomy

基　　金：云南省创伤骨科临床医学中心(ZX20191001)。

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。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 threedimensional 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.

关 键 词：腕关节 舟骨 月骨 骨间韧带 有限元分析 

分 类 号：R686[医药卫生—骨科学] R318.01[医药卫生—外科学]