I have weeks ago, I banged my knee on an object and I thought I had bruised the bone and the weight was causing my pain. The pain gradually got better so I put it down to the bone healing but I am just curious as too; if it is something more. I have now straightened my legs one at a time, so the knee cap is completely tucked in supporting the leg, upon touching and feeling my right leg the knee cap is solid but when I do the same thing to the injured knee, it can move, be pushed in, as if the knee cap is flapping... Could I get an online consult on this?