Hi Janet- I have Crohn's-colitis, which is Crohn's of the large bowel. Unfortunately, it's not curable and does tend to reoccur in the small bowel after a colectomy. The average length of time for remission after a colectomy is 5 years.
18 months ago I had 2/3 of my large bowel and a foot of small bowel removed that had backwash ulceration from the colon. The small bowel is currently healthy, but the remaining piece of sigmoid colon and rectum have since flared up so I can't have reconnective surgery.
In terms of 'luckiness' in the Crohn's stakes, us with Crohn's-colitis are probably the better off compared to those with Crohn's in the small bowel. The large bowel isn't neccessary for digestion (unlike the small bowel) so we're lucky that we were affected in expendable bowel first.