I had arthroscopy and holes drilled into my femur to create cartilage...the swelling never entirely went away...ROM returned with PT after a full 6 months. It took two weeks to get off crutches, another week to get rid of the cane, then biking, then swimming, then eliptical, then a few jogs of a few miles...wasn't able to run again for a year and since I had a lateral retinacular release my knee will never feel the same...if I don't do PT on it it gets stiff and weak even during running weeks. The pain is finally gone though (2 years out).