Figure 6a. Drawings illustrate the blood supply of the talus. (a) Medial talar blood supply. The first branches of the posterior tibial artery are the posterior tubercle branches. More distally, the posterior tibial artery gives off the tarsal canal artery with its deltoid branches. This artery courses through the tarsal canal. (b) Lateral talar blood supply. The lateral tarsal artery connects the dorsalis pedis artery to the perforating peroneal artery. It also branches to form the tarsal sinus artery. (c) Inferior talar blood supply. The tarsal sinus artery and the tarsal canal artery form an anastomotic loop within the tarsal canal. (d) Posterior talar blood supply. The posterior tubercle branches of the posterior tibial artery and perforating peroneal artery supply the medial and lateral tubercles.