Sorry it's taken me a few days to get back to this! Hopefully I can answer your questions in a way that helps with your decision making process.
So you got your first surgery as just the end ileostomy and colon removed and then got your rectum removed afterwards? I did have two separate surgeries, but since I knew going in that I was going to have a permanent ileostomy, a bit more was removed in the 1st surgery than would be if I'd had step 1 of a 3 step JPouch procedure. So with that 1st surgery they removed my large intestine, rectum and most of my anus...leaving a small anal stump. The surgeon said I could possibly stay like that indefinitely, but if I had disease return in that area, I would have to consider medication or more surgery....
Since I am considering how I may feel after step one and if I would be content with stopping there, what is the process of getting the rectum removed in a later surgery? I can't say for sure what your rectum removal surgery would be like, since mine was removed with the 1st surgery. For my 2nd surgery, they didn't
open me up at all, instead going in thru my backside, taking out and doing whatever was needed, then sewing it all up. Hopefully someone else can come along and answer if rectum removal can be done the same way or if they would
open you up again. I have never heard of it being vacuumed out, but I guess that could be a thing?! The only way I can imagine NOT being sewn up would be a situation like mine, but without the disease returning enough in the remaining anal stump to warrant another surgery.
As far as surgeries go, having my back side sewn up wasn't the hardest one I've been through...but there was some discomfort for sure. I only stayed one night in the hospital, but it was a good few weeks before I could sit normally for any amount of time without A LOT of padding. After a week or 2 I was driving, but not comfortably at first...and WITH cushions. I did have some trouble with the wound healing, but a couple extra visits to the doctor and my willingness to due careful and thorough wound care got me through that just fine. The whole process wasn't nearly as bad as I feared it would be, and I certainly heard my share of horror stories ahead of time!
I hope that was at least a bit helpful....let me know if I can help further