Hi, SJ ... It sounds like your ileo is going to be temporary, give the fistula a chance to rest and heal, and then a reconnect to the natural rectum/anus. If so ... good luck, go for it!
My colostomy is permanent - both the rectum and anus were removed because of rectal cancer. The surgeon sewed things together inside, sewed a neat little seam along where the anus used to be, and now I have a nice, pain free, "Barbie Butt." I sat Very Gently for a month or so - at least till the stitches disolved and the pain gradually went away. Caution: only sit on flat, firm, surfaces - donut cushions or soft pillows won't give you enough support, they'll actually allow the stitches to droop and be more uncomfortable.
Hope this helps. Martha
For those having surgery and receiving a permanent ileostomy the anal area is sewn shut. For those having j-pouch surgery, the rectum is removed but the anal muscles are left intact. A temporary ileostomy is given (if have a 2 or 3 step). If you are having j-pouch surgery your butt will not be sewn shut.