Originally Posted by AllDone
If you can manage the pain and do the activities that you want, another argument for waiting is the ever improving technology. Not only are the replacement joints improving, but there are dozens of autologous stem-cell trials taking place right now, so cartilage rebuilding may be available in a few years. Weight loss and strength building are still the mainstays of treament for now, though. Ick and boring respectively.
I don't know how true this is, but last year about this time I went to lecture on hip and knee replacements. The older ortho giving the presentation said that he was glad that he was nearing the end of his career, because before too long the stem cell treatments that you refer to will push most of joint replacement surgery out. His guess was ~10 years.
I think that currently the rehab from TKR is harder and less certain than form THR. Hips are just inherently more stable.