Well, after a podiatrist telling me he was sure I had a torn meniscus and likewise an Orth. Surgeon I decided to make sure, before having keyhole surgery, and paid myself for an MRI scan. Am I glad I did, I don't have any tear at all but Chondromalacia Patellae so it's physio for me and no surgery !! My advice to anyone who has been told they need surgery is to have a scan to make sure.