Institute of New Technologies and Applied Informatics, Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Liberec, Czech Republic.
Department of Mechanical Engineering, Auckland University of Technology, Auckland, New Zealand.
J Anat. 2022 Oct;241(4):928-937. doi: 10.1111/joa.13739. Epub 2022 Aug 20.
The alteration in mechanical properties of posterior pelvis ligaments may cause a biased pelvis deformation which, in turn, may contribute to hip and spine instability and malfunction. Here, the effect of different mechanical properties of ligaments on lumbopelvic deformation is analyzed via the finite element method. First, the improved finite element model was validated using experimental data from previous studies and then used to calculate the sensitivity of lumbopelvic deformation to changes in ligament mechanical properties, load magnitude, and unilateral ligament resection. The deformation of the lumbopelvic complex relative to a given load was predominant in the medial plane. The effect of unilateral resection on deformation appeared to be counterintuitive, suggesting that ligaments have the ability to redistribute load and that they play an important role in the mechanics of the lumbopelvic complex.
后骨盆韧带力学性质的改变可能导致骨盆变形的偏倚，进而导致髋关节和脊柱的不稳定和功能障碍。在这里，通过有限元方法分析了韧带不同力学性质对腰骶部变形的影响。首先，利用先前研究的实验数据验证了改进的有限元模型，然后用该模型计算了腰骶部变形对韧带力学性质、载荷大小和单侧韧带切除变化的敏感性。相对于给定载荷，腰骶复合体的变形主要发生在正中平面。单侧切除对变形的影响似乎有违直觉，这表明韧带具有重新分配载荷的能力，它们在腰骶复合体的力学中起着重要作用。
