title: Traumatic avascular necrosis of the astragalus.
mesh_terms: D001174:Arthrodesis; D006801:Humans; D009336:Necrosis / Q000000981:diagnostic imaging; D009984:Orthopedic Fixation Devices; D011859:Radiography; D013628:Talus / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000293:injuries*