Please tell your sister not to worry too much. Infact, one of my friends had colon cancer, and was advised colostomy. After his 1st stage, I had met the doctor, and was told that they may not be able to create a J pouch. However, after about 3 months or so, the GI surgeon gave him a J pouch, and he is doing quite well. It has been over two years, he had this J pouch.
So it is not necessary that your sister will have to go for permanent colostomy. I had too had it for over 4 months between my first surgery and the second one. There are lots of people on Ostomy Board, who are really doing well with permanent colostomy for over 10 years.
45 years Male Attorney
Diagnosed UC October 1989
Had two stage J Pouch Surgery Nov 2005; Take Down March 2006
Complications after surgery - Incisional Hernia and Ano Fistulas
"There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle: Albert Einstein
"What you are aware of you are in control of; what you are not aware of is in control of you."