Mike in VA--welcome to the site! I did have "tailbone" area/lower back pain but I attributed it to my many fistulas...as a Crohn's patient, I was never a candidate for anything but the ileo, so I cannot answer for that, but I did go from a temp ileo to a permanent!
If you go to www.uoaa.org, I believe there is a list/link of ColoRectal surgeons.
Is your pain basically gone now that you have an ileostomy? How do you rate your quality of life now? Any major issues with your ileo.? Also, where did you have your ileo performed and by which surgeon?
TIA for your help.