摘要
Abstract
The presacral area is situated between the posterior wall of the rectum and the sacrum,encom-passing loose connective tissue,the middle sacral ar-tery,lateral sacral blood vessels,the presacral venous plexus,presacral nerves,and presacral lymph nodes.It is essential to comprehend the direction and distri-bution of arteries and veins within the presacral area,the anatomy of the sacral nerves and their influence on visceral function,as well as the relationship between the anterior sacral foramen,sacral vertebrae,and the vascular network.Furthermore,based on findings from traditional autopsy and CTA three-dimensional re-constructions of the presacral vascular area,it is proposed to delineate the surgical safe zone for sacral fixation.A thorough understanding of the anatomical positioning and interrelations of these structures offers an anatomical foundation for presacral nerve resection,presacral lymphadenectomy,and other surgical pro-cedures,thereby providing both a theoretical basis and practical guidance for presacral surgery.关键词
骶前区/解剖结构/手术安全区Key words
presacral area/anatomical structure/sur-gical safety zone分类
医药卫生
