Bare, A good friend of mine had a (planned) knee replacement done in January, 2012 and an (unplanned) hip replacement surgery done 8 months later in August of last year. It did take time for recovery, but she is walking so much better than she was this time 2 years ago. In fact we walked all over a flea market one month ago which is something she could not have done 2 years ago. Sometime down the road she is considering getting the other knee replaced, but for now is she doing pretty well.
Keeping my fingers crossed you will be golfing in November. That is only 3 months from now!