Ohhhhhhh, I am so envious! I have been trying to get a new knee and can't find a doctor who will do it because of my age. They all say I am too young (51) but all I know is that I am too young to feel this old!!
I had athroscopic surgery in March and they trimmed some miniscus and scraped out the arthritis and after the doctor saw how bad that knee was he said, yep, you're going to need a new knee, but they don't want to do it for another 4-5 years. I have to keep a crutch in the trunk of my car because some days the walk in to and around the grocery store is just too much for me.
I refuse to just sit on the porch and rock, so I'm still trying to do all my normal activities (except I had to give up walking for exercise), but I walk with a pronounced limp because I'm always in pain. I'm so glad your replacement surgery went well and I look forward to the time I can have mine and be pain free.