直肠侧韧带的解剖与临床意义

Lateral ligament of the rectum-anatomical or surgical terminology

目的研究直肠侧韧带的临床解剖及其与直肠癌手术的关系。方法对23具尸体的盆腔进行解剖。结果23具尸体均存在直肠侧韧带，其中8具尸体的单侧（6具左侧，2具右侧）、2具尸体的双侧存在直肠中动脉。23例尸体的直肠侧韧带中，直肠神经支是恒定存在的。结论在直肠与脏筋膜之间存在直肠侧韧带，直肠癌手术中应在脏筋膜与盆丛之间完成直肠侧方的游离。

Objective To study the clinical topography of lateral ligament of the rectum in the relation to surgical procedures in rectal carcinoma. Method Twenty-three pelvises （12 males, 11 females） harvested from embahned cadavers were studied by topographic dissection. Results The lateral rectal ligament were identified bilaterally in all cadavers between the rectum and visceral fascia. Unilateral middle rectal arteries was found in 8 cadavers and bilateral arteries was found in 2 cadavers. The rectal branches from the pelvic plexus were uniformly constant structure within lateral ligament of the rectum. Conclusion The lateral rectal ligament is located between rectum and visceral fascia. The cleavage between visceral fascia and pelvic plexus is the appropriate plane for lateral rectal dissection of rectal cancers.