University of California, Irvine, CA, USA.
Aesthet Surg J. 2010 May-Jun;30(3):297-300. doi: 10.1177/1090820X10369918.
The aesthetically appealing eyebrow shape has been defined by its arch, located near the junction between the medial two-thirds and lateral one-third. The position of this arch has been historically described by arbitrary anatomical landmarks that have no logical structural relationship. Moreover, selection of endoscopic brow lift incision sites that define vector of pull and fixation points have been variably described.
The authors examine the position of the deep temporal fusion line to determine whether it can act as a more accurate and functional landmark than prior anatomical landmarks for the eyebrow peak position.
Eyebrows were measured in 50 subjects from the medial aspect of the eyebrow to the a) deep temporal fusion line (ridge), b) eyebrow peak (arch), c) lateral aspect of the brow, and d) lateral limbus. Pearson's correlation, descriptive statistics, and student's t test results were obtained.
Eyebrow measurements demonstrated that the deep temporal fusion line is the most precise indicator of brow peak position among all examined landmarks. The Pearson correlation value was strongest between brow peak and deep temporal fusion line (P = .860) and a t test confirmed this observation with no significant difference between brow peak and deep temporal fusion line. The lateral limbus and medial two-thirds lateral one-third junction more accurately predict brow peak in females, but the deep temporal fusion line is an equally reliable predictor of brow peak for males and females.
These findings suggest that placement of endoscopic brow lift incisions and subsequent fixation points may be best defined along the deep temporal fusion line.
美观的眉形由其眉弓决定，眉弓位于内三分之二和外三分之一交界处附近。该眉弓的位置一直以来都是通过没有逻辑结构关系的任意解剖学标志来描述的。此外，用于定义提拉矢量和固定点的内窥镜眉提升切口位置的选择也有不同的描述。
作者检查了颞深融合线的位置，以确定其是否可以作为比以前的解剖学标志更准确和更具功能性的眉峰位置标志。
从内侧眉缘到 a）颞深融合线（嵴）、b）眉峰（拱）、c）外侧眉缘和 d）外侧角膜缘，对 50 名受试者的眉毛进行了测量。获得了 Pearson 相关系数、描述性统计数据和学生 t 检验结果。
眉毛测量结果表明，颞深融合线是所有检查标志中最精确的眉峰位置指标。眉峰与颞深融合线之间的 Pearson 相关系数最强（P =.860），t 检验证实了这一观察结果，眉峰与颞深融合线之间无显著差异。在女性中，外侧角膜缘和内三分之二与外三分之一交界处更能准确预测眉峰，但颞深融合线也是男性和女性眉峰的可靠预测指标。
这些发现表明，内窥镜眉提升切口和随后的固定点的放置可能最好沿着颞深融合线定义。
