posterior tibial artery

The posterior tibial artery (PTA) is one of the 2 branches of the tibioperoneal trunk in the lower leg and provides oxygenated blood to the posterior compartments of the leg and plantar surface of the foot. It is accompanied by the posterior tibial vein, along its course.


Variant anatomy

In posterior tibial artery aplasia, the posterior tibial arteries are absent and there is compensatory hyperplasia of the peroneal arteries.

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