Talar neck fracture complicated by avascular necrosis

Discussion:

The dominant blood supply of the talus is via the artery of the tarsal canal (branch of the posterior tibial artery), which supplies most of the talar body. The deltoid branch of the PTA supplies part of the medial talar body.
The talar head and neck are supplied by the anterior tibial artery, as well as the artery of the tarsal sinus (branch of a perforating peroneal artery).

Fractures through the tarsal neck may disrupt these vessels, particularly if displaced. Absence of Hawkins sign raises the suspicion of devascularisation and subsequent development of avascular necrosis.

    Create a new playlist
Loading...