Anatomical Study on the Position of "Summit of Zygoma"-Theoretical Bases for Reduction Malarplasty
Anatomical Study on the Position of "Summit of Zygoma"-Theoretical Bases for Reduction Malarplasty
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“颧顶”位置的解剖学研究——颧骨缩小术的理论基础
DOI：
10.1097/prs.0b013e31821eb58e
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
et al
中科院分区：
文献类型：
--
作者：
Nagasao T;et al
背景：为了在缩小颧骨整形术中取得最佳效果，必须准确识别需要缩小体积的颧骨区域。本解剖学研究的目的是评估的位置的肿瘤区域，最有助于突出的脸颊。方法：形态的肿瘤进行了研究，对121名日本成年人（73名男性和48名女性）。标记下眶缘中点、颧上颌交界处、额突与颧弓交界处、眶外侧缘作为解剖参考点。然后，标记一个垂直平面，该平面与腺瘤的前后边缘相交。最远离平面的点被定义为最高点。结果：在水平方向上，颅顶位于眶外侧缘的外侧，额突与颧弓交界处的内侧;在垂直方向上，颅顶的位置男性高于女性。小脑顶位于额突与颧弓交界处的内侧，颧骨缩小术的骨切口应位于额突后缘内侧;单纯靠分离颧弓不能有效矫正前突，男性的颧弓顶高于女性。因此，男性的骨切口线应高于女性。
Background:To achieve optimal outcomes in reduction malarplasty, the area of zygoma from which volume should be reduced must be accurately identified. This anatomical study aims to evaluate the location of the zygoma region that contributes most to the protrusion of the cheek.Methods:The morphology of the zygoma was studied on 121 Japanese adults (73 men and 48 women). The midpoint of the inferior orbital rim, zygomaticomaxillary junction, the junction between the frontal process and the zygomatic arch, and the lateral orbital rim were marked to be used as anatomical reference points. Then, a vertical plane intersecting the anterior and posterior edges of the zygoma was marked. The point of the zygoma most distant from the plane was defined as the summit of the zygoma. Three-dimensional measurement using graphic software was performed, and the positional relationships between the summit and the four reference points were evaluated.Results:In terms of horizontal position, the summit is located lateral to the lateral orbital rim and medial to the junction between the frontal process and the zygomatic arch. Regarding vertical position, the summit exists at higher positions in men than in women.Conclusions:The summit of the zygoma is located medial to the junction of the frontal process and zygomatic arch. Therefore, bone incision lines should be placed medial to the posterior edge of the frontal process in reduction malarplasty; effective correction of the protrusion cannot be achieved solely by detachment of the zygomatic arch. The summit is located higher for men than for women. Therefore, bone incision lines should be placed higher for men than for women.