Hello, my mom had total knee replacement two years ago. She could shuffle with a walker, the dr. said she would be at least 75% better, she hasn't taken a step since. Her ham strings tightened up so much, her legs are now folded that her heels are touching her buttox. We were disappointed with the results of the surgery, even several attempts at therapy didn't help. I don't mean to be the bearer of bad news, but I wouldn't want anyone to go through what mom has, if it can be helped.