Hi, I had my TKR Jan. 8,2019 and MUA on Feb. 27, 2019. I go to PT 3 X week and the other days I exercise @ home. Like you said the scar tissue builds as soon as I finish PT or exercising at home. it seems as though the scar tissue is luring and waiting to jump back on me. I also massage it daily many times throughout the day by hand. I have not tried anything to break it up. I have an appt. with my surgeon tomorrow we are going to discuss the pros and cons of arthroscopic surgery or him going back into it to maybe putting a different size knee. Has anyone ever heard of putting a different size knee in. Also has anyone experienced the feeling of metal squeezing both sides of the knee.