LARs due to cancer of the mid and low rectum can lead to functional impairments of sexual, urinary and continence dysfunctions. Low or very low end-to-end anastomosis using either stapled or handsewn technique enables gases and stool to collect, resulting in urgency and problems with continence, especially during the first year after surgery. Colonic reservoirs as options of "neorectum" are created to improve bowel function in patients undergoing LAR with
CAA. "J-shaped" colonic and transverse coloplasty pouches are the available ways of restoring the neo-rectal reservoir .
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