Department of Anatomy, School of Medicine, Côte d'Azur University, 28 Avenue de Valombrose, Nice, 06100, France.
Clinical Research Unit Côte d'Azur (UR2CA), School of Medicine, Côte d'Azur University, 28 Avenue de Valombrose, Nice, 06100, France.
Surg Radiol Anat. 2024 Dec;46(12):1905-1915. doi: 10.1007/s00276-024-03481-z. Epub 2024 Sep 27.
To provide a detailed examination of the arterial blood supply to the middle third of the nasal skin through cadaveric dissections, identifying the primary arterial sources and their precise locations.
Cadaveric dissections were performed on 14 hemifaces from fresh specimens. The main feeding arteries and their branches were carefully dissected under magnification. Morphometric characteristics of the specimens, along with the caliber of the arteries and their branches vascularizing the mid-third nasal skin were recorded, and statistically analyzed.
Four main arteries were identified as responsible for the blood supply to the mid-third of the nasal skin: the facial artery, the nasal branch of the infra-orbital artery (nbIOA), the dorsal nasal artery, and the upper branches of the columellar plexus. The lateral nasal artery (LNA) and the nbIOA were the main contributors, each providing significantly larger arterial branches than the other sources (1.8 ± 0.8 branches of 0.67 ± 0.2 mm for the LNA, p-value < 0.001-1 ± 0 branches of 0.55 ± 0.17 mm for the nbIOA, p-value < 0.01). The largest arterial branch consistently penetrated the lateral and inferior angle of the mid-third nasal skin, originated either from the LNA or nbIOA.
The LNA and nbIOA endorse crucial roles in the arterial blood supply to the mid-third nasal skin. Despite the variability in vascular anatomy, a consistent pattern of arterial supply with convergence in the depth of the alarfacial groove was observed. Understanding these patterns is vital for improving surgical precision and reducing the risk of complications in both aesthetic and reconstructive surgeries.
通过尸体解剖详细检查鼻皮肤中三分之一的动脉血液供应，确定主要动脉来源及其确切位置。
对 14 个新鲜标本的半侧面部进行尸体解剖。在放大下仔细解剖主要供血动脉及其分支。记录标本的形态学特征，以及为中三分之一鼻皮肤供血的动脉及其分支的口径，并进行统计学分析。
确定了 4 条主要动脉负责为鼻皮肤中三分之一提供血液供应：面动脉、眶下动脉鼻支（nbIOA）、鼻背动脉和鼻中隔柱上支。外侧鼻动脉（LNA）和 nbIOA 是主要贡献者，它们提供的动脉分支明显大于其他来源（LNA 为 1.8±0.8 支，口径为 0.67±0.2mm，p 值<0.001；nbIOA 为 1±0 支，口径为 0.55±0.17mm，p 值<0.01）。最大的动脉分支始终穿透中三分之一鼻皮肤的外侧和下外角，起源于 LNA 或 nbIOA。
LNA 和 nbIOA 在为鼻皮肤中三分之一提供动脉血液供应方面发挥着重要作用。尽管血管解剖结构存在变异性，但观察到动脉供应的一致性模式，在鼻面沟深处汇合。了解这些模式对于提高手术精度和减少美容和重建手术并发症的风险至关重要。
