I am new to this discussion group and just saw your post. Like most participants on this site I suffer from chronic pain in both knees three years after double knee replacement surgery. My diagnosis is arthrofibrosis or excessive scar tissue. I have had both knees surgically manipulated which helped initially, but then over time the scar tissue continued forming. I finally tried 25 laser treatments (deemed experimental so not covered by insurance) but my condition did not improve. Now my hip is becoming compromised because of compensating for my knee that won't bend more than 80 degrees, making it difficult to get in and out of the driver's seat in my cars. My X-rays all look perfect and my surgeon is afraid that if I try revision surgery I will simply develop the same problem post-op. I notice your post is over a year old, did you ever find relief?