 This involves removing the large majority of the remaining rectal stump and creating a new "rectum" by fashioning the end of the small intestine into a pouch and attaching it to the anus.After this procedure, a new type of ileostomy is created (known as a loop ileostomy) to allow the anastomoses to heal.The final surgery is a take-down procedure where the ileostomy is reversed and there is no longer the need for an ostomy bag.