I had a knee replacement 8 years ago. Didn't know the importance of physical therapy. I had 2 weeks of home therapy that seemed too gentle. I then had 4 months of pt/ 3 and then 2 times a week, after leaving work. Usually 2 people would push and pull and force my leg to bend so much that there were finder print bruises over my leg. They would force it to get an ROM number to report to the surgeon. The best number was 93. Back to the Drs office, the P Asst had me step on the low stool to get on the couch. I stepped up with my TKR leg and she said that I the knee is fine. The Dr was busy, but came in and was reading the digital file and thought I was a different patient. He corrected himself, but I left without getting an answer to my poor ROM, which was considerable less than 93. Six 2nd opinions later, I finally found that my issue is SCAR TISSUE build-up. Two years ago, a different surgeon performed a Reconstruction and scrapped a lot of scaring. About five months of more intense therapy and now my knee is back to poor ROM. I decided to live with it, but now my other knee is bone on bone and I am afraid of SCAR TISSUE build-up again. I understand that some people are prone to haveng this issue and doctors do not really have a solution.