Lee Jihee, Kang Thomas H-K, Jeong Soyeon, Kim Jeong Sook, Lee Soo-Jeong
Department of Obstetrics and Gynecology, Ulsan University Hospital, University of Ulsan, College of Medicine, 25 Daehakbyeongwon-ro, Dong-gu, Ulsan, 44033, South Korea.
Department of Architecture and Architectural Engineering, College of Engineering, Seoul National University, Seoul, South Korea.
Arch Gynecol Obstet. 2025 Jan;311(1):87-90. doi: 10.1007/s00404-024-07838-y. Epub 2025 Jan 11.
The primary treatment for cervical insufficiency is cervical cerclage (mechanical support) with vaginal progesterone (biochemical support). Cerclage is a surgical procedure that mechanically increases the tensile capacity of the cervix. Therefore, it is necessary to analyse the effects of cerclage from a mechanical point of view.
To analyse cerclage techniques based on physical principles and mechanical forces.
We assumed that the cervix is a thin-walled pressure vessel and applied a uniform vertical distribution model, a linear vertical model, and a non-linear vertical distribution model.
According to our model analysis, the higher the position of the thread, the thicker the thread used, and the greater the number of threads, the more effective the confining force on the suture, when performing a cerclage.
It is necessary to provide an appropriate cerclage for each patient based on these mechanical characteristics, in addition to considering the risks and benefits and biochemical interactions of the cerclage.
宫颈机能不全的主要治疗方法是宫颈环扎术（机械支撑）联合阴道用孕激素（生化支撑）。环扎术是一种通过机械手段增加宫颈拉伸能力的外科手术。因此，有必要从力学角度分析环扎术的效果。
基于物理原理和力学力分析环扎技术。
我们假定宫颈是一个薄壁压力容器，并应用了均匀垂直分布模型、线性垂直模型和非线性垂直分布模型。
根据我们的模型分析，在进行环扎术时，缝线位置越高、使用的缝线越粗、缝线数量越多，对缝合处的约束力就越有效。
除了考虑环扎术的风险与益处以及生化相互作用外，有必要根据这些力学特性为每位患者提供合适的环扎术。
