title: Trabecular trauma of the talus and medial malleolus concurrent with lateral collateral ligamentous injuries of the ankle: evaluation with MR imaging.
abstract: OBJECTIVE
  The objective of this study was to elucidate the relationship between lateral collateral ligamentous injuries of the ankle (ankle sprain) and bone bruise (trabecular trauma) of the talus and/or malleoli in the patients with twisting injuries of the ankle.
  
  
  METHODS
  Magnetic resonance studies of the ankle were retrospectively reviewed, focusing on the presence or absence of lateral collateral ligamentous injuries and the location of bone bruise in the talus and/or malleoli.
  
  
  METHODS
  Thirty-five patients with acute twisting injuries of the ankle were studied.
  
  
  CONCLUSIONS
  Four patterns of bone bruise were found in 14 patients: (1) bone bruise in the talar dome equivalent to osteochondral fracture in two patients, (2) bone bruise in the posteromedial aspect of the talus and the medial malleolus singly or in combination in four, (3) bone bruise in the anteromedial aspect of the talus in six, and (4) bone bruise with a combination of the second and third patterns in two. The second pattern was associated with tear of the anterior talofibular (ATAF) ligament in all patients and injury of the calcaneofibular (CF) ligament in one out of four. The third and fourth patterns were associated with tears of both ATAF and CF ligaments in all patients. The identification of bone bruise was of value in indicating lateral collateral ligamentous injuries.
authors.affiliation: Department of Radiology, Dokkyo University School of Medicine, Tochigi-ken, Japan.
authors.forename: G
authors.initials: G
authors.lastname: Nishimura
authors.forename: M
authors.initials: M
authors.lastname: Yamato
authors.forename: M
authors.initials: M
authors.lastname: Togawa
mesh_terms: D000293:Adolescent; D000328:Adult; D016512:Ankle Injuries / Q000175:diagnosis*; D003287:Contrast Media; D003288:Contusions / Q000175:diagnosis*; D005260:Female; D005682:Gadolinium; D019786:Gadolinium DTPA; D006801:Humans; D017844:Lateral Ligament, Ankle / Q000293:injuries* / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives; D012189:Retrospective Studies; D013180:Sprains and Strains / Q000175:diagnosis*; D013628:Talus / Q000293:injuries* / Q000473:pathology*
chemical_list: D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA