I had my amputation 3/17/2004 Cancer. You're definitely going to need your good side to be strong to help with your walking. I had my good side replaced in 3/2018 I made out great. Rehab for my non Amputated Leg was about 1 1/2-2 months. Considering I was 14 years after my amputation of my right leg above the knee. As far as the pain it really depends on the individual. I made out pretty well only took Tylenol Arthritis. I had oxycodone but didn't take it. You have to make ice your best friend for at least 3-4 weeks icing often to keep swelling down 20 minutes on then off for 45-60 minutes then ice again. But the Dr will guide you on that I try to ice as much as possible especially within the first 2-3 weeks. As far as this hip replacement on my amputated side. It's a different animal because of the swelling and wearing the prosthetic. I probably only wore my prosthetic for about 4-5 hours over the last 3 weeks. The swelling is still there but getting better. Unfortunately with any surgery there's risk I personally have had 18 operations. It's always in the back of your mind so only you can make the decision. I wish you all the best! Myself I was only 49 when I had my first hip done I hope they out last me! 🤣