Maligne Tumoren des Kolons und Rektums

Anterior and low anterior resection

“…This is why most authors do not define a low anterior resection according to the position of the anastomosis, but by the localization of the tumor or its distal border. Pichlmayr [19] suggested that resections up to 10 cm away from the anal verge should be defined as low anterior resections, which is in agreement with our definition. The distance of 10 cm divides the middle part of the rectum, and therefore the whole rectum, into an upper and lower half (Fig.…”

“…There are differences between males and females as well as between individuals as regards the small pelvis and the distal border of the peritoneum, which means the border between the extra-and intraperitoneal parts of the rectum. Most authors describe the length of the rectum as being 15-16 cm from the anal verge [11][12][13][14][15][16][17], although figures ranging from 10 to 18 cm, too, are given [18][19][20]. Sizable differences also exist in regard to the definition of the middle third of the rectum.…”