I had a total knee replacement 8 months ago it it has been hell. I have had two manipulations, the second one popping open part of my three month old incision. I have may havee 78 degree bend after all this crap. I am currently having saline injections to try and help break up the scar tissue. After 3 treatments I have gained 12 degrees. Would never have done this had I know this would be the result.