I agree - even though the original post is old thought i would give my input.
A total colectomy is where they remove the entire large bowel and attach the small bowel to the rectum. A subtotal is where they leave a portion (to be decided by the surgeon) of the large bowel and attach the small bowel to that part of the large bowel left intact. that is what my surgeon told me. it is confusing as it seems surgeons may differ. my surgeon told me that a colectomy with removal of the rectum is called something else but i cant remember.
I was scheduled for my own colonoscopy which had to be delayed FOUR times due to my system not cleaning out. Once they believed that we could proceed, (I laugh now!!) the camera became stuck and I had three nurses pushing on my stomach to unstick it. My doctor told me right then she was 99% sure that I had colonic inertia. To verify, I took the Stitz Marker test, which confirmed. So I guess what I am trying to say is that maybe sometimes the colonoscopy is a tool to bring up the question of this gastric problem. I hope this helps. . . .at least maybe a few laughs!!