I had an arthroscopic lysis of adhesions a year ago. My knee now easily bends to 125. However, the PT was brutal. A 10 hour a day routine for a month starting the day after surgery. I would be at the PT office 3x a week for 2 hour sessions where he would force my leg to move to the number the surgeon gave him. I learned how to cry silently as he pushed. PT then went to 8 hours, then 6. I was discharged at 3 hours of PT a day and told keep it up - don’t loose it. I now go to a rowing gym and row an hour 4 days a week and do an hour of stretching at home 4-5 times a week now.