What is articular cartilage?
Articular cartilage is the protective outer layer covering the ends of bones within a joint. It reduces stress on the bone beneath it and helps allow low-friction motion. Injuries to articular cartilage of the knee are becoming more common, and can result in significant pain and dysfunction. Articular cartilage lacks a blood supply, which makes it harder to heal after an injury. In fact, these types of injuries rarely heal without treatment.