Do Hospitals make you wear Diapers/Nappies after knee and/or back surgery?

I know I've asked a similar question before but I wanted to ask again with a little more detail.

Wanting to prepare just in case I have to have surgery, And look for other options if that's what they expect from patients. Also are there alternatives and if so what are they?

I don't mean after I heal, LOL I mean right after surgery ask I do suffer from random temporary 3 days+ leg paralysis due to my back and knees being the way they are now but I can still manage to drag myself to the toilet in great pain as I refuse to take pain killers for personal reasons.

The L2, L3, L4 and S1 of my back have Randomly paralyzing for so far 3 days to 3 weeks from the legs down. Pain never ends, And my Knees Crack, dislocate, pop and just give out on me at random times again with never ending pain. This is both my knees so I was wondering not when I've healed but basically right after a possible surgery on all. Because I'm betting I won't be able to stand or walk will I have to be diapered or is there another way apart from a Diaper or catheter because 1 I hear that a catheter will really hurt. 2 because I could be wrong but as far as I've learned they only have them for urinal. And third I would really like to get myself to a toilet still on my own.