Interventional procedure overview of focal resurfacing implants to treat articular cartilage damage in the knee

Articular cartilage protects the ends of the bones in the knee joint from friction during movement. Damage from injury or disease to a small (focal) area of the articular cartilage can cause pain, stiffness in the knee and reduced mobility. In this procedure, performed under general or regional anaesthesia, a surgeon makes a cut to access the knee joint. The damaged area of the cartilage and bone is removed and replaced with a small artificial implant that restores the smooth surface (resurfacing). The aim is to reduce symptoms, allow immediate weight bearing and preserve joint function. It also may reduce or delay the need for a later knee replacement.