Knee Osteoarthritis
Knee Osteoarthritis occurs when the cartilage that cushions the components of the knee joint begins to wear away. The knee, a synovial hinge joint, is formed by three bones: the femur (thighbone), tibia (shinbone), and patella (kneecap). When the cartilage that lines these bones breaks down—whether from age or overuse—painful inflammation and joint damage can occur.