【 文献重点摘要 】

Previous investigators have not described some of the new anatomic variations or provided quantitative and analytical data of the arterial anatomy of the lips in as much depth as in this study. Dissections of 14 different facial sides of cadavers were done. Through investigating the arterial supply of the upper and lower lips, measurements were performed and statistically analyzed. The main arterial supply of the upper lip was from the superior labial artery (SLA, mean external diameter, 1.8 mm [SD, 0.74 mm]); in addition, the subalar and septal branches contributed to its vascularization. The origin of the SLA was above the labial commissure in 78.6%. The subalar branch was not found but replaced by the alar artery that arose from the infraorbital artery in 1 specimen. The main arterial supply of the lower lip was derived from 3 branches of the facial artery, the inferior labial artery (mean external diameters, 1.4 mm [SD, 0.31 mm]) and the horizontal and vertical labiomental arteries. The inferior labial artery originated mostly below the labial commissure in 42.9% and formed a common trunk with the SLA in 28.6%. The horizontal labiomental artery was present in all, but vertical labiomental artery was absent in 21.4% of specimens. Overall, observed anatomic variations were classified into types I to VIII. Significant relations between the demographic variables and measured parameters were reported including the correlation coefficient among evaluated parameters. In conclusion, this study provides various information that aids in creating new flaps and supports the vascular base for clinical procedures in reconstructive surgery of the lip.

Keywords

Arterial blood supply of the lips, anatomic study of the arterial supply of the lips, reconstruction of the lip, arterial lip supply measurements and analyses

以前的研究人员没有描述一些新的解剖变异，也没有像本研究那样深入地提供嘴唇动脉解剖的定量和分析数据。对14具身体不同面部进行了解剖。通过调查上下唇的动脉供血情况，进行测量，并进行统计学分析。上唇的主要动脉供血来自上唇动脉(SLA，平均外径1.8 mm[SD，0.74 mm])，此外，鼻翼下支和鼻中隔支也参与了上唇的血管化。78.6%的SLA起始点位于唇连合上方。1例未发现翼下支，代之以眶下动脉发出的翼动脉。下唇的主要动脉供血来自面动脉、下唇动脉(平均外径1.4 mm，SD，0.31 mm)以及唇侧水平动脉和垂直唇动脉的3支。42.9%的下唇动脉起源于唇连合下方，28.6%的下唇动脉与SLA形成共同主干。所有标本均有水平唇动脉存在，但21.4%的标本未见垂直唇动脉。总体而言，观察到的解剖变异被分为I到VIII型。报告了人口统计学变量与测量参数之间的显著关系，包括评估参数之间的相关系数。总之，这项研究提供了各种信息，有助于创造新的皮瓣，并为唇部重建手术的临床操作提供血管基础。

关键词

唇部动脉供血、唇部动脉供血解剖学研究、唇部重建、唇部动脉供血测量与分析