You're just going to have to wait. You're either headed for knee surgery and there are several different kinds or for physical therapy, depending on what the surgeon thinks. Whatever happens, get a second opinion. But you can't predict, so try to let it go until you get the diagnosis. Radiological tests show what they can show, but you tell more by manipulating the knee to see what movement makes it hurt etc. A surgeon might disagree with the radiologist, which leaves you to decide which one you believe. A second opinion solidifies the options. Peace.