The knee joint a la plastic model

Here is what a knee should look like on the inside. My right knee doesn't look like this...it is bone on bone so the muscle over the top is cut, the joint pulled apart and plastic and titanium inserted into the femur and the tibia so that the joint will roll as smoothly as glass. And you should see what I can do to the security checks at the airport!!! Major surgery and very painful because of the muscle incision but it works! Worked great on my left knee, now for the right one.