My 14 yr old son was diagnosed with AVN (hip) 6 months ago...trauma induced... follow up MRI says 1. AVN of left femoral head with an unchanged large devascularized region, but interval progression of the subchondral collapse of the femoral head.New large subcortial cyst at the medial aspect of the metaphysis of the femoral head. 2. resolution osseous stress response in left femoral head. 3. unchanged large left hip joint effusion with synovial enhancement. We have been to a pediatric orthopedic surgeon and have been doing acupuncture and Chinese herbs since March. I am going to get a second opinion but I need some help.