Manipulation under anesthesia. I thought it was mostly done to the scar tissue area that was preventing range of motion.

Mua is when they put you under anesthesia and force your leg into flexion …. Yes it’s used to break scar tissue….i had mua after first tkr for me did not help because I had wrong size knee to start ….it does cause swelling and pain and afterwards you have to do therapy everyday for a week … mua is a very difficult procedure it takes time to work through so don’t expect 120 right after surgery …. They get it there but usually can’t maintain it will take time and exercise and patience……there is videos out there they you can watch to help you … good luck hope this answer’s some of your questions