I've read through some of these comments and was wondering, what causes scar tissue formation after a TKR?

I had both knees replaced last year. I'm a 68 y/o male. I worked with a trainer for six months prior to the surgeries to get my knees as fit as possible, given the bone on bone pain. IMMEDIATELY after the surgery, I started working with a PT twice a week and doing the exercises I was given three times a day, every day. On my PT days, I did the exercises twice more each day. I followed this without exception and my knees reached 130 degrees of flexion, extension at zero.

I'm still in the gym 6 or 7 days a week. I work on everything - legs, back, core and others. My legs are extremely fit and there is no clicking or any noise at all.

I believe it takes a lot of work by the patient for a successful recovery from TKR. There is no downtime after the surgery.

My understanding is that scar tissue will form from inactivity. If this is true, then people going to the trouble of having scar tissue removed should be vigilant about post-op exercising.

My surgeon said that, in his opinion, a successful recovery from TKR is 10% the skill of the surgeon, technology, and the surgery team - and 90% the result of the work the patient does pre and post surgery. I agree.

Now maybe scar tissue forms for some other reasons. I just suggest that people considering TKR keep these things in mind. I feel like a new person with these new knees, and I'm not gonna let all that hard work go to waste.