I'm an active 51 year old tennis player and golfer. I tore my medial meniscus in January and elected to rehab vs surgery. Now 3 months later pain has moved laterally and I'm getting stiffness behind my knee. MRI showed meniscus tear in posterior horn inferior and a small Baker's cyst. Treatment so far has been RICE, physio, exercises, stretching, ITB massage and message. Any thoughts on how to relieve stiffness behind knee? Thank you.