I had PCL avulsion of grade II 8 weeks back. I had brace for the first three weeks. I started doing physiotherapy exercises from the fourth. I am doing static quadriceps exercises and Range of motion with weights. But still I can't bend my knee fully and only upto 135 something. 1) Should I force it while doing range of motion exercises to bend it more or it would cure itself slowly. 2) when would I be able climb steps, run etc?