I've had both of mine replaced in the past two years. Make that your absolute last option.
I've heard enough about knee replacements. I don't want that unless absolutely necessary.
Thinking I might have to get used to wearing a brace on my bad one.
Like anything else, it depends on where you get the work done, and your expectations. My second replacement was three years ago, July 20th., November 22 I shot my bull elk in the Crazies in Montana after climbing a "cow face" as the guide put it, I worked for that elk and worked harder to get there.
Rehab is a bitch, but less painful than 8 years under Obama...
Had mine done at Southern Joint Replacement center at Centennial in Nashville, the only good thing about that crap hole city, except the Nephrology Division at Vanderbilt.