title: What is your diagnosis? The navicular bone (distal sesamoid) is displaced proximally because of an avulsion fracture at the attachment of the impar ligament.
authors.affiliation: Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College of Veterinary Medicine, Texas A&M University, College Station 77843-4475.
authors.forename: A N
authors.initials: AN
authors.lastname: Baird
authors.forename: E
authors.initials: E
authors.lastname: Behrens
authors.forename: L
authors.initials: L
authors.lastname: Morris
authors.forename: J A
authors.initials: JA
authors.lastname: Auer
mesh_terms: D000818:Animals; D050723:Fractures, Bone / Q000000981:diagnostic imaging / Q000662:veterinary*; D006734:Horse Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006736:Horses; D007794:Lameness, Animal / Q000209:etiology; D008297:Male; D011859:Radiography; D013639:Tarsal Bones / Q000000981:diagnostic imaging / Q000293:injuries*