Clinical Anatomic Research on the Auricular-temporal Area Reversal Flow Axial Flap Pedicled with Supraorbital Artery or Supratrochlear Artery

Objective To study the anatomy of the blood vessel of the frontal skin flap, especially the anastomosis among them to provide basis for clinical use. Method The position, caliber, track and distribution of the superficial temporal artery were dissected on 15 cadaver preserved with formalin for observation of the relationship between arteries and the other tissues. Blood construction of frontal area were observed on 5 fresh adult cadaver by vascular cast. Result Lots of anastomoses were exist among supraorbital artery and supratrochlear artery and the frontal branch of superficial temporal artery, the anastomoses concentrate in this region: the superior boundary was 4.9±0.4 cm from the supraobital, the inferior boundary was supraorbital, the inside of superior boundary was 1.0±0.2 cm from the frontal-medial line, the lateral of superior boundary was 4.5±0.4 cm from the frontal-medial line; the inside of inferior boundary was 1.4±0.2 cm from the frontal-medial line, the outside of inferior boundary was 2.3±0.5 cm from the frontal-medial line. Conclusion Blood supply of the frontal skin flap is affluent and the anastomoses among them is fixed and can be made into different kinds of skin flap for clinical use.