@andoman
Let me ask you a question. How much pain do you have right now? If you didn’t have to take pain medication would you be better off?
If you could walk, dance, or even get up from a chair without pain I would think you could go ahead and have the surgery.
Almost Everything in life has the ability to make us hesitate and be fearful.

I don’t cry because of pain in my knees anymore. I sleep better and am very grateful for the surgery. I’ve had both of my knees replaced.
It’s not an easy surgery to recover from, but when you do, you will be happy.