The patella slides back and forth inside this groove when the knee is bent and straightened. Slippery articular cartilage covers the ends of the femur, trochlear groove, and the patella's ...

Aside from athletic injuries, knee damage tends to be relegated to the realm of the gray-haired. But new research suggests ...

Still, it can also occur when the tendons or ligaments snap over the bony structures in the knee or due to patellofemoral pain syndrome (PFS), torn cartilage, or osteoarthritis (OA). Other people ...