Rectal adenocarcinoma is a common cancer. Substantial advances in surgical
technique and adjuvant treatments usually allow to preserve sphincter funct
ion, without overruling oncologic surgery standards. Sexual function is usu
ally preserved, except in patients with locally advanced tumors. There is s
ound evidence that complete removal of the mesorectum and local radiation t
herapy decrease the rate of local recurrences. Quality of functional result
s after colorectal versus coloanal anastomosis is compared, and the contrib
ution to patient comfort of construction of a reservoir is evaluated.