"The definition of osteochondritis dissecans says that these lesions occur in an immature growing skeleton, however, the symptoms usually have their onset in the adulthood."
"Radiographs are more sensitive if dedicated projections are obtained, such as dorsiflexion and plantarflexion AP of the ankle or with 15° of internal rotation. Osteochondritis dissecans is predominantly located in the superomedial corner of the talus:"
"History and etymology"