I'm sorry that your husband is battling Crohn's. It's an awful disease, but thankfully, surgery will improve his quality of life, at least it has for me.
I had Crohn's in the large intestine and rectum, and it has not shown up anywhere else since I had my colon and rectum removed 3 years ago. I haven't taken any medicine since surgery either, which is nice, since there can be many side effects from them.
My GI said that the chances were low that the disease would ever show up in my small intestine, since it was never there before, which was wonderful news. I have heard that approximately 40% of people with Crohn's only have it in the large intestine, and that if you have gone 7 years disease-free post-colectomy, you will most likely be disease-free for life. Now, that's what I've heard, so I don't know how accurate it is, but it sounds good to me.
Good luck with your decision, and please ask us any questions you may have about
the surgery and life with an ostomy, which, by the way, is very good.
Dx'd Crohn's in '99 at age 28. Proctocolectomy and permanent ileostomy in '06.
Disease-free and medicine-free since surgery and very thankful to be healthy again.