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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Osteoarthritis Cartilage. 2013 Aug 15;21(11):10.1016/j.joca.2013.08.011. doi: 10.1016/j.joca.2013.08.011

Figure 5.

Figure 5

Diagram demonstrating the pathogenesis of osteochondrosis dissecans (modified with permission from Figure 7,[2]). Panel A: normal enchondral ossification. Panel B: Development of osteochondrosis latens lesion due to failure of cartilage canal blood supply causing necrosis of the epiphyseal cartilage (circled area). Panel C: Osteochondrosis manifesta lesion appears as a delay in the progression of the ossification front. Panels D and E: healing of osteochondrosis manifesta lesion by incorporation into the subchondral bone. Panels F and G: Development of osteochondrosis dissecans lesion due to trauma causing collapse of the articular cartilage overlying areas of necrotic epiphyseal cartilage.