I am a female over 65 and had surgury early Dec. Had a setback in right knee with tissue or scar tissue catching as I walk. The pain/catch moved to side of knee now. Painful to walk. Still lots of discomfort early evenings and nights. Good news is that the p.t. has gotten my left knee to 110 degrees and right knee to 130 ( which is above normal range) . Wondering if anyone has similar pain problems or catching issues. Does this really go away within 3-6 months? Surgeons, p.t. people, rehab docs are so vague. Had it done with the "best" in NYC.