|you sound like me!!! :d
i had a total hip replacement (thr) in november last year...Much the same a syou, I was walking in severe discomfort...Bone on one, 2.5 inches shorter than other leg....
I agree with your surgeon, bone resurfacing will only work when the hip is not under so much pressure or body-weight... I have a metal hip joint with a metal cup...And it's brilliant.... Just nearly 3 months post op, and I am already walking with no pain, I can do so much more and the wee changes I can see are just amazing.... Your doctor knows what you need...Trust him.
Catheter wise...Yes I had one but it was optional..... It wouldn't hurt for you to have one...What pain relief are they giving you?
I had an epidural, and though it was good, I wouldn't have another!!! The morphine that was being injected also caused me to pass out, when trying to stand!
Go for it....Please let me know how you get on!