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Fig. 1C —Classification of popliteal artery branching. PT = posterior
tibial artery, PR = peroneal artery, AT = anterior tibial artery. (Reprinted
with permission from Kim D, Orron DE, Skillman JJ. Surgical significance of
popliteal artery variants: a unified angiographic classification. Ann
Surg 1989; 210:776–781
[12]) Type III-A: Posterior
tibial artery is hypoplastic and peroneal artery is large. At ankle, distal
posterior tibial artery is replaced to peroneal artery. Type III-B: Anterior
tibial artery is hypoplastic and peroneal artery is large. At ankle, dorsalis
pedis artery is replaced to peroneal artery. Type III-C: Both anterior tibial
artery and posterior tibial artery are hypoplastic. At ankle, dorsalis pedis
and posterior tibial arteries are replaced to peroneal artery.