Zak K
Handchir Mikrochir Plast Chir. 1982;14(3):153-5.
The interdisciplinary experimental computer test for determination of the biomechanics of extensor and flexor tendon injuries at the distal phalanx of the fingers were performed with the aid of the finite element method. By input of the extreme boundary values (stress, biomechanic system, deformation and movement behavior, material coefficent distribution), it was possible to simulate clinically occurring injuries. Pathogenetically crucial for the type of injury are chance factors, which lead to a particular constellation of static or dynamic stress conditions. Accordingly, maximal stress exceeding the material coefficients occurs either in the region of the tendon or at the bone insertion. The finite element procedure reproduces the maximal main, normal and shearing stress at the site corresponding to the rupture and has proven to be a suitable method of simulation and analysis.
借助有限元方法,对手指远节指骨伸肌腱和屈肌腱损伤的生物力学进行了跨学科实验计算机测试。通过输入极限边界值(应力、生物力学系统、变形和运动行为、材料系数分布),可以模拟临床上发生的损伤。对于损伤类型而言,致病的关键因素是偶然因素,这些因素导致特定的静态或动态应力条件组合。因此,超过材料系数的最大应力要么出现在肌腱区域,要么出现在骨附着处。有限元程序可再现对应于断裂部位的最大主应力、正应力和剪应力,已被证明是一种合适的模拟和分析方法。