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Anteromedial thigh (AMT) flaps based on lateral circumflex femoral artery (LCFA) have characteristics which make them favourable for use in reconstruction of extensive thigh, head, neck and leg defects. AMT flap which is elevated on the artery has the advantages of low donor site morbidity and preservation of main arteries. Due to inconstant anatomy of the pedicle, the flap is mostly not preferable. Hence, we aimed to describe the anatomical features of the unnamed branch of the descending branch of the LCFA harvesting AMT flap. For this purpose, the external iliac artery was displayed bilaterally on 15 adult (13 males and 2 females; age range 55-82 years) preserved cadavers using latex injection. The perforator branch of the descending branch from the LCFA was microdissected under 4× loupe magnification. The perforator branch was located 28.53 (20.20-34.20) cm distal to the anterior superior iliac spine, 22.12 (13.40-28.00) cm distal to the pubic tubercle, and 13.20 (10.80-16.20) cm proximal to the interepicondylar line. At the level of origin point the mean diameter of the perforating branch was 0.17 cm and the mean diameter of its cutaneous branch was 0.14 cm. The mean length of the pedicle was 5.71 (3.70-9.00) cm. We conclude that our findings contribute to the literature in terms of anatomical knowledge for surgical safety.

Anatomy of the anteromedial thigh flap based on the oblique branch of the descending branch of the lateral circumflex femoral artery