Originally Posted by ollinger
Knee replacements don't last forever. Go easy on it and there's a good chance you'll need surgery again in about 10 years 15 if you're lucky. Play tennis on it and you'll likely need surgery sooner. A second cousin of mine had it done, played lots of tennis, and the thing collapsed after about 6 months (the bony cracked under supports).
After the surgery and recovery period (~10 months) the pain will be reduced
and the mobility will be better than before the surgery.
Is that the general expectation?