Medical College of Georgia at Augusta University, Augusta, Georgia.
Department of Dermatology.
Dermatol Surg. 2021 Jun 1;47(6):797-801. doi: 10.1097/DSS.0000000000002992.
Dermal filler injection in the vicinity of the terminal facial artery (FA) can lead to vascular compromise with devastating consequences, including tissue necrosis, blindness, and stroke.
The purpose of this study was to examine lumen diameter and other anatomical features of the terminal FA relevant to dermal filler injection.
Eighteen embalmed adult cadavers were dissected along the distribution of the terminal FA. Gross and microscopic measurements were taken at predetermined points in its course.
Mean lumen diameter was largest at the midpoint between the oral commissure and the lateral supra-alar crease (0.81 ± 0.36 mm; point P1) and smallest at the midpoint between the lateral supra-alar crease and the medial canthus (0.43 ± 0.23 mm; point P3). Mean cutaneous depth was deepest at the lateral supra-alar crease (5.06 ± 1.84 mm; point P2) and most superficial at the midpoint between the lateral supra-alar crease and the medial canthus (3.13 ± 2.07 mm; point P3).
The large-caliber lumen diameter of the terminal FA creates the potential for intra-arterial injection with commonly used filler needles and blunt-tipped cannulas at all points in its course in the nasolabial fold and midface.
在终末面动脉（FA）附近进行真皮填充剂注射可能会导致血管损伤，产生严重后果，包括组织坏死、失明和中风。
本研究旨在检查与真皮填充剂注射相关的终末 FA 的管腔直径和其他解剖特征。
对 18 具经过防腐处理的成人尸体进行解剖，沿着终末 FA 的分布进行解剖。在其走行的预定部位进行大体和微观测量。
管腔直径的平均值在口角与侧眶上嵴之间的中点处最大（0.81±0.36mm；点 P1），在侧眶上嵴与内眦之间的中点处最小（0.43±0.23mm；点 P3）。皮肤的平均深度在侧眶上嵴处最深（5.06±1.84mm；点 P2），在侧眶上嵴与内眦之间的中点处最浅（3.13±2.07mm；点 P3）。
终末 FA 的大口径管腔直径使其在鼻唇沟和中面部的整个走行过程中，在所有部位都具有使用常用填充针和钝头套管进行动脉内注射的潜力。
