Acute and Chronic Injuries of the Talar Dome

“Osteochondral lesion of the talus” (OLT) is a broad term, representing acute and chronic disorders of the osteochondral junction. They mostly occur at the convex parts of the talar dome. At time of diagnosis signs of degenerative joint disease are rarely seen. The terminology is varied including terms like osteochondritis dissecans, ostechondral fractures, transchondral fractures. Etiology of these lesion often is unclear. Besides obvious trauma, overuse, growth disturbance and reduced vascular perfusion is discussed. Elias et al (2007) showed a medial location in 62% and lateral in 34%. It is well known that the medial lesions generally are larger and deeper than the lateral ones.