Anatomical Reevaluation of the Anococcygeal Ligament and Its Surgical Relevance

Abstract

The anococcygeal ligament is divided into 2 layers: a thick ventral layer, rich in thin vessels and extending from the presacral fascia to the conjoint longitudinal layer of the anal canal, and a thin dorsal layer extending between the coccyx and external anal sphincter. The anococcygeal ligament is one of the critical structures for decision-making regarding rectal and upper anal canal mobilization.