Anus external muscle sphincter

AIM: To develop surgery of proctectomy with total mesorectectomy, internal and deep external sphincter resection with bringing down of intestine and formation of sphincter, levator and reservoir in its perineal part. Simultaneous atypical liver resection was performed in 2 cases. In perineal part of intestine sphincter, levator and reservoir were created using smooth muscle cuff, fixed sero-muscular flap and transversely sutured submucosa respectively. Morphological features of sphincter, levator and reservoir were experimentally studied using histostereometry in dogs.
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