Institute of Anatomy, Leipzig University, Leipzig, Germany.
ZESBO - Center for Research on Musculoskeletal Systems, Leipzig University, Leipzig, Germany; Department of Orthopedic Surgery, Traumatology and Plastic Surgery, Leipzig University, Leipzig, Germany.
J Mech Behav Biomed Mater. 2022 Oct;134:105368. doi: 10.1016/j.jmbbm.2022.105368. Epub 2022 Jul 19.
The objective of this study was to evaluate the intrinsic preload of the sacrotuberous ligament. Preload measurements and anatomical experiments were performed on 20 specimens from 10 human cadavers and assessed to consider the thesis of the ligamentous tension band system as a possible load distribution. The result was an unexpectedly high preload force with an overall average of 118 N ± 74 N. Age has been significantly different between females and males in the cohort (median 94 vs. 77 years). Nevertheless, there is preliminary evidence of the sex-dependent sacrotuberous ligament preload force with an average value of approximately 65 N for the 10 female cadaver specimens and 172 N for the 10 male cadaver specimens. The assessment of further influencing factors and their statistical evaluation also showed a dependence of the sacrotuberous ligament preload force on body height, age and elastin content. Thus, the sacrotuberous ligament is more preloaded in the cadaver than previously assumed in the literature. Therefore, and contrary to most assumptions, it could possibly also be more preloaded in a living person in an upright position under a muscular load. This leads to the hypothesis that pelvic stability is more dependent on ligamentous preload than previously thought. These considerations should be taken more into account in numerical simulations of sacroiliac joint function.
本研究旨在评估骶结节韧带的固有预载荷。我们对来自 10 具人体尸体的 20 个标本进行了预载测量和解剖实验，以评估韧带张力带系统作为可能的载荷分布的理论。结果显示，预载力出乎意料地高，平均为 118N±74N。在该队列中，女性和男性的年龄存在显著差异（中位数分别为 94 岁和 77 岁）。尽管如此，骶结节韧带预载力存在性别依赖性的初步证据，10 具女性尸体标本的平均预载力约为 65N，10 具男性尸体标本的平均预载力为 172N。进一步评估其他影响因素及其统计学评价也表明，骶结节韧带预载力与身高、年龄和弹性蛋白含量有关。因此，与文献中的先前假设相比，尸体中的骶结节韧带预载力更高。因此，与大多数假设相反，在肌肉负荷下处于直立姿势的活体中，骶结节韧带的预载力可能更高。这导致了这样的假设，即骨盆稳定性比以前认为的更依赖于韧带的预载力。在骶髂关节功能的数值模拟中，应更多地考虑这些考虑因素。
