Abstract
Definition Osteochondritis Dissecans (OCD) is a disorder of subchondral bone, which secondarily affects the overlying articular cartilage. In OCD, an area of subchondral bone becomes necrotic, resulting in a loss of structural support for the overlying articular cartilage. This process leads to degeneration and fragmentation of the articular cartilage and underlying bone. In the absence of treatment or spontaneous regression, the osteochondral fragment gradually separates from its bony bed, eventually forming a loose body.
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