Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department, Moscow, Russia.
Plastic Surgery Department, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
Aesthet Surg J. 2021 May 18;41(6):697-704. doi: 10.1093/asj/sjaa152.
Due to its arterial vasculature, the nasolabial sulcus is one of the most challenging facial regions to treat when trying to ameliorate the signs of facial aging.
The aim of the present study was to provide data on the 3-dimensional course of the angular artery within the nasolabial sulcus in relation to age, gender, and body mass index to increase safety during minimally invasive treatments.
Thee hundred nasolabial sulci from 75 males and 75 females of Russian Caucasian ethnic background (mean [standard deviation] age, 45.7 [18.7] years; mean body mass index, 25.14 [4.9] kg/m2) were analyzed. Bilateral multiplanar measurements were based on contrast-enhanced computed tomography cranial scans.
Up to 3 arteries could be identified within the nasolabial sulcus: ~90% contained 1 arterial trunk, ~9% had 2 trunks, and ~1% had 3 trunks; females had more arteries than men. The artery is located at mean depths of 21.6 mm at the oral commissure and 8.9 mm at the nasal ala. The angular artery was lateral to the nasolabial sulcus in 100% of cases; the smallest distance between the artery and the nasolabial sulcus was at the oral commissure (11.91 [7.9] mm) and the greatest was at the nasal ala (13.73 [3.9] mm).
In contrast to current concepts, the angular artery is not located strictly subdermal to the nasolabial sulcus but at a variable depth, and in 100% of the investigated cases lateral to the nasolabial sulcus. With increasing age, the depth and lateral distance between arteries and sulci reduces significantly, underscoring the need for special caution when injecting this site.
由于其动脉血管系统，鼻唇沟是试图改善面部衰老迹象时最具挑战性的面部区域之一。
本研究旨在提供有关鼻唇沟内角动脉在年龄、性别和体重指数方面的 3 维走向的数据，以提高微创治疗的安全性。
分析了 75 名俄罗斯白种人男性和 75 名女性的 300 个鼻唇沟（平均[标准差]年龄，45.7[18.7]岁；平均体重指数，25.14[4.9]kg/m2）。双侧多平面测量基于增强对比计算机断层扫描颅骨扫描。
在鼻唇沟内可识别多达 3 条动脉：90%含有 1 条动脉干，9%有 2 条干，~1%有 3 条干；女性比男性有更多的动脉。动脉位于口角处的平均深度为 21.6mm，鼻翼处为 8.9mm。角动脉在鼻唇沟的外侧，在 100%的病例中；动脉与鼻唇沟之间的最小距离在口角（11.91[7.9]mm），最大在鼻翼（13.73[3.9]mm）。
与目前的概念相反，角动脉不是严格位于鼻唇沟的皮下，而是位于可变的深度，在 100%的研究病例中位于鼻唇沟的外侧。随着年龄的增长，动脉与沟之间的深度和外侧距离显著减小，这强调了在注射该部位时特别需要小心。
