Retroileal trans-mesenteric colorectal anastomosis

Figure 1 Ileal mesentery surgical technique description. A: After the proximal resection, an avascular mesenteric window is created; B: After an extended left colectomy has been performed, the remnant colon is passed through the avascular mesenteric window, behind the ileum; C: An end-to-end, trans-mesenteric, retro-ileal colo-rectal anastomosis is performed.