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首页> 外文期刊>The Journal of craniofacial surgery >Definition of topographic organization of skull profile in normal population and its implications on the role of sutures in skull morphology.
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Definition of topographic organization of skull profile in normal population and its implications on the role of sutures in skull morphology.

机译：正常人群中颅骨轮廓的地形组织的定义及其对缝线在颅骨形态中的作用的影响。

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摘要

The geometric configuration of the skull is complex and unique to each individual. This study provides a new technique to define the outline of skull profile and attempt to find the common factors defining the ultimate skull configuration in adult population. Ninety-three lateral skull x-ray from the computed tomographic scan films were selected and digitized. The lateral skull surface was divided into 3 regions based on the presumed location of the coronal and lambdoid sutures. Three main curvatures (frontal, parietal, occipital) were consistently identified to overlap the skull periphery. The radius, cord length, and inclination of each curvature were measured.The average values for 3 defined curvatures of the skull profile were recorded. Factor analysis of the measured values produced 3 factors explaining the skull profile. The first factor explained 32% of total variance and was related to the overall size of the head as represented by total length and the radius of the curvature in the vertex and back of the head. The second factor covered 26% of the variance representing the inverse correlation between the angle of the frontal and parietal curves. The third factor revealed the direct correlation of the occipital and parietal angle. In all of these factors, the frontal zone variation was independent or opposite of the parieto-occipital zone. A strong association between the total length of the skull, occipital curve radius, and length with the sex was shown. In conclusion, the skull profile topography has large variation and can be defined mathematically by 2 distinct territories: frontal and parieto-occipital zones. These territories hinge on the coronal suture. Therefore, the coronal suture may play a dominant role in final skull configuration.
机译：头骨的几何形状很复杂，并且每个人都独一无二。这项研究提供了一种新技术来定义颅骨轮廓的轮廓，并试图找到共同的因素来定义成年人口中最终的颅骨形态。从计算机断层扫描胶片中选择了93个侧面颅骨X射线并将其数字化。根据冠状和lambdoid缝线的推测位置，将颅骨外侧表面分为3个区域。一致地确定了三个主要曲率（额叶，顶叶，枕骨）与颅骨边缘重叠。测量每个曲率的半径，绳索长度和倾斜度，并记录3个确定的颅骨轮廓曲率的平均值。测量值的因子分析产生了3个解释头骨轮廓的因子。第一个因素解释了总方差的32％，并且与头部的整体大小有关，头部的总大小由头部的顶部和后部的总长度和曲率半径表示。第二个因素覆盖了26％的方差，代表了额叶和顶叶曲线的角度之间的反相关。第三个因素揭示了枕骨和顶角的直接相关性。在所有这些因素中，额叶区的变化与顶枕区无关或相反。头骨的总长度，枕骨曲线半径和长度与性别之间有很强的联系。总之，颅骨轮廓的地形变化很大，可以用两个不同的领土进行数学定义：额叶和顶枕区。这些领土取决于冠状缝线。因此，冠状缝线可能在最终的颅骨结构中起主导作用。

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