Hindfoot Trauma
A 28-year-old man presents after a motor vehicle accident with severe foot pain and deformity. Examination reveals marked hindfoot swelling and inability to bear weight. Radiographs show a displaced talar neck fracture with subluxation of the subtalar joint. The ankle joint remains congruent. At 6-week follow-up, a subchondral lucency is noted in the talar dome on radiographs. Regarding talar neck fractures and avascular necrosis:
Mark each as TRUE or FALSE
The talus blood supply is predominantly from branches of the posterior tibial artery (artery of the ...
The Hawkins classification for talar neck fractures: Type I (non-displaced), Type II (displaced with...
The talus has minimal cartilage coverage allowing extensive vascular access; blood supply is primari...
Hawkins sign is subchondral lucency in the talar dome appearing at 6-8 weeks post-injury; it indicat...
Treatment of displaced talar neck fractures requires urgent anatomic reduction and stable fixation (...
Answer the questions to see explanations
Click T (True) or F (False) for each option