Calot's triangle

Abstract

Calot's triangle is an anatomical landmark of special value in cholecystectomy. First described by Jean-François Calot as an "isosceles" triangle in his doctoral thesis in 1891, this anatomical space requires careful dissection before the ligation and division of the cystic artery and cystic duct during cholecystectomy. The modern definition of the boundaries of Calot's triangle varies from Calot's original description, although the exact timing of this change is not entirely clear. The structures within Calot's triangle and their anatomical relationships can present the surgeon with difficulties, particularly when anatomical variations are encountered. Sound knowledge of the normal anatomy of the extrahepatic biliary tract and vasculature, as well as understanding of congenital variation, is thus essential in the prevention of iatrogenic injury. The authors describe the normal anatomy of Calot's triangle and common anatomical anomalies. The incidence of structural injury is discussed, and new techniques in surgery for enhancing the visualisation of Calot's triangle are reviewed. © .

Tactile Augmented Reality for Arteries Palpation in Open Surgery Training

“…1). This latter, which is the most challenging step of the entire procedure, requires a meticulous dissection of the Calot's triangle contents [12] for a proper ligation and division of the cystic artery and cystic duct. The simulation platform comprises: realistic physical replicas of the involved anatomical structures, an electromagnetic (EM) tracking system, an optical calibration-acquisition system, and a laptop.…”

Laparoscopic cholecystectomy

“…Karaciğer ve safra yolları cerrahisinin akılda tutulması gereken ana özellik-lerinden birisi bu bölgedeki arter, ven ve safra yolla-rının birçok varyasyonunun olduğudur. Özellikle çift sistik arter başta olmak üzere, aksesuar ve replacing sistik arter gibi birçok varyasyona hazırlıklı olunmalıdır (17,18) . Yine sistik kanalın beklenenden kısa olması durumunda Ductus Hepaticus ve D. Choledocus'un seyri dikkatle incelenmelidir.…”

Laparoscopic Cholecystectomy (LC): Toward Zero Error [Retracted]

“…Essentially, the HC triangle constitutes the area of target for dissection in LC. The triangle differs from the Calot's triangle where cystic artery forms cephalad boundary rather the surface of the liver [1], [2].…”

“…This refers to an area under the liver surface on the right of hepatic hilum. It contains under surface liver cranially, caudal cystic duct, and medially located common hepatic duct (CHD) ( Figure 1) [1], [2]. The triangle features variable quantities of fibrofatty connective tissues, lymphatic, cystic lymph nodes, variable portions of right hepatic artery, and cystic artery [1].…”