My cousin who is 37 had been suffering with pain in her illium for 2 years from CD and she finally had a resection in 7/2012 where they took out 5 inches and the valve and now she feels better than she has felt in many years. No more symptoms, no more pain, she can eat what ever she wants (but doesn't) without any problems, she has gained all her wieght back and feels perfect. She wishes she had had the surgery earlier, then listening to her GI who kept telling her he could put here in remission with humira. After suffering for years with pain, the surgeon told the GI to take his humira and shove where the light don't shine and said surgery is the only way to deal with this. and he was right.
She had a really good surgeon who had a pathologist in the OR with him so that as he was cutting out intestine, he would give the pathologist samples to check right there in the OR so that he was sure he removed all the CD and left none behind. He also didn't want to cut out more intestine then he needed.
After the surgery, my cousin had no problemas with D and her BMs are totally normal. The only maintenance drug she is taking is pentassa and she is also following the SCD diet with hopes that she can keep the CD from ever returning.
Don't be afraid of the surgery. Go for it, you will be glad you did. Just get a good surgeon and ask him to have a pathologist in the OR with him.