I also had a lot of trouble with bending the knee couldn’t get past 60. The thing that worked for me was a rocking chair. When you rock it loosens the knee joint and by pushing your foot back a little more works like a charm. Also if you have a wheelchair you can rock back and forth. My doctor dumped the brace very early and I was thankful because I found that by lifting my leg on my own instead of lifting it by the brace made my leg muscles stronger…goog luck