An in vivo biomechanical study of Chinese female with uterosacral ligament suspension

VernacularTitle:宫骶韧带悬吊术的中国女性在体生物力学研究
Author: Xiao SHANG ¹ ; Lan ZHU ; Jinghe LANG ; Chao MA ; Naili WANG ; Xide LI
Author Information

1. 100730,中国医学科学院北京协和医院妇产科
Keywords: Gynecologic surgical procedures; Pelvic floor; Ligaments; Sacrum; Biomechanical phenomena
From: Chinese Journal of Obstetrics and Gynecology 2018;53(10):700-704
CountryChina
Language:Chinese
Abstract: Objective To measure in vivo biomechanical properties of pelvic support structures associated with uterosacral ligament suspension(ULS). Methods Ten Chinese female cadavers(death within 48 hours)without embalming were carefully dissected to expose the ligament. After dissection, ligaments were sewn according to standard ULS surgical technique. They were stretched at a steady rate to breakage during constant electronic registration of load and displacement. In vivo biomechanical properties were evaluated by a load-displacement curve. Results Ultimate load of uterosacral ligament, ring around cervix were(37.3±23.5),(49.3±28.4)N, respectively. The differences between the two groups was not significant(P>0.05). Ligament stiffness were(1.26±1.22),(1.45±0.92)N/mm, respectively. There was no significant difference between groups(P>0.05). Conclusions The uterosacral ligament, ring around cervix with sufficient strength are not easy to deform. ULS is an effective procedure for treating middle pelvic defects from a biomechanics perspective.