258名中国汉族青年外鼻矢状位形态测量及评估

The sagittal morphological and clinical application study of nose in Chinese

目的 测量并分析中国汉族青年人外鼻的形态学特征,重点测量外鼻、鼻周的矢状位置以及比例关系,为鼻整形术前形态设计及手术方案的选择提供参考依据.方法 2017年11月至12月,公开招募符合入组条件的健康汉族青年志愿者258名,利用Artec三维扫描仪,以标准化的程序,对其进行头面部三维图像的采集.在经过处理后的三维图像中引入三维平面坐标系,选取面部形态学标志点,对外鼻及面部的矢状位形态数据进行测算,并分析比例关系.结果 经测算统计,男性和女性面部大部分标志点的绝对突出度差异无统计学意义(P>0.05),女性仅比男性在眶下、颧部稍为突出,差异具有统计学意义(P<0.05).男性各标志点的相对突出度大于女性,面部更加立体,差异具有统计学意义(P<0.05).男性和女性鼻基底平面均较眶下点更突出,其平均相对突出度为7.00.鼻基底平面与冠状面夹角范围为2° ~4°.男性和女性在鼻基底平面与冠状面夹角、鼻额角、鼻面角的差异有统计学意义(P<0.05).结论 研究获得了258名汉族青年人外鼻矢状位形态评估数据,可为中国人鼻周整形手术的术前评估和方案制定提供参考.

Objective The purpose of this study is to analyze the nasal morphological characteristics in Chinese adult, of Han nationality, by the measurements in sagittal plan and the proportionality between nose and facial structures, in order to provide aesthetic references for rhinoplasty, and individual surgical planning.Methods During 2017 November to December, 258 healthy Han Youth volunteers were included. Three-dimensional (3D) models of the facial characteristic information were collected using Artec 3D scanner, by standardized procedures. The nasal and facial distances and angulations were measured, based on predesigned facial landmarks. Thereafter, the proportions of above measurements were calculated.Results There was no significant difference between genders in absolute prominence. As for relative prominence, male nose is more prominent, resulted in a more stereoscopic facial profile. The nasal basal plane of both male and female, was more anterior than the infraorbital points, with 7% of the absolute degree of the infraorbital points. The range of the angle between the nasal basal plane and coronal plane was 2-4 degrees.Conclusions This study sets a database for the external nasal characteristics of the young adult in Chinese Han nationality, which could provide quantitative references for preoperative evaluation and individually surgical planning.