Blood Supply to Talus
- body of talus is furnished w/ blood vessels from inferior talar surface in sinus tarsi and from talar neck;
- non displaced fractures of talar neck disrupt intraosseous branches of tarsal sinus and tarsal canal, but major vascular sling remains intact;
- w/ displaced fractures of talar neck, branches from dorsalis pedis artery to talar neck, artery to tarsal canal & artery to tarsal sinus (major arterial supply to talus) are ruptured;
- dorsalis pedis artery:
- most blood supplied to the head and neck of the talus arises from the dorsalis pedis artery;
- anastomosis within sinus tarsi & tarsal canal form major blood supply to the talar head;
- artery of the sinus tarsi:
- the sinus tarsi and sinus canal anastomosis lies beneath the talar neck;
- peroneal artery
- from peroneal artery comes branches to posterior process & branch to form artery of sinus tarsi;
- dorsalis pedis artery
- supplies branches to dorsal talar neck & branch to form artery of sinus tarsi;
- artery of sinus canal:
- branch of posterior tibial forms anastomotic sling inferior to talus from which branches arise to enter talar neck;
- deltoid branches usually arise from the artery of the tarsal canal & supply the medial third of the body;
- main artery supplying blood to the body of the talus is the artery of the tarsal canal
The extra-osseous and intra-ossoeus blood supply of the talus.
Blood supply of the talus.
The arterial anatomy of the talus.
Original Text by Clifford R. Wheeless, III, MD.
Last updated by Data Trace Staff on Wednesday, September 5, 2012 2:43 pm