ABFAS American Board Of Foot And Ankle Surgery Part I Didactic Examination

Which radiographic sign indicates avascular necrosis of the talus following a fracture?

Hawkins sign (subchondral lucency at 6–8 weeks) Periosteal new bone formation Increased talar neck cortical density acutely Widening of the ankle mortise

Correct Answer:

Hawkins sign (subchondral lucency at 6–8 weeks)

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