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Fig. 4. —Schematic drawing showing arterial supply of talus. Extraosseous blood supply comes from three arteries: posterior tibial artery, anterior tibial artery, and perforating branch of peroneal artery. Main arterial supply to talar body is from artery of tarsal canal, which is a branch of posterior tibial artery and contains deltoid branch. It also supplies portion of anastomotic ring around talus with help of artery of tarsal sinus. Each of these arteries produces perforating vessels to supply specific areas of talar body.