Patellofemoral osteoarthritis refers to degenerative joint disease at the point where the kneecap meets the femur (thighbone). Osteoarthritis is the most common form of arthritis. In common with its occurrence in other joints, the underlying cause of this condition when it occurs at the patellofemoral joint is a wearing down of the joint cartilage over time, and the symptoms are pain, tenderness, stiffness and inflammation. Braces such as the ones below are designed to address this condition in various ways, including realigning the patella over the femur. Please consult with your doctor before choosing a product in order to ensure that your choice is right for you.