颅前窝的应用测量

作者在100具中国成年人颅标本上,就颅前窝进行了矢状径、左右径和斜径测量,所用测点除额颧点外,全部为颅骨内面的骨结构。研究发现,颅前窝右半侧在矢状径和额颧点一正中平面间径两方面,十分明显地大于左半侧;右半侧矢状径与宽径的相关系数,有显著或高度显著意义;而小翼后缘外侧点一正中平面间径的平均值,为左半侧大于右半侧。因此,颅前窝的左、右半侧,在形态学测量上是不对称的。本文讨论了颅前窝、颅中窝中间部的分界问题,并联系颅脑关系和临床应用作了初步分析。

AN APPLIED MORPHOMETRIC STUDY OF THE ANTERIOR CRANIAL FOSSA

The morphometric value of the anterior cranial fossa has previously been poorly documented. There is also an absence of information about the asymmetry between the two halves of this fossa. In a series of 100 Chinese adult cranial bases at random, distances from each selected osseous point to a particular plane or distances between osseous points were measured, All these points, except the frontozygomatic point only, are endocranially situated, and data on 17 variables were available for statistical analysis. As a result, the right half shows some greater sagittal values than that of the left, and the width from the frontozygomatic point to the median sagittal plane is greater on the right half than that on the left, the differences are statistically significant or highly significant. Moreover, more of the sagittal measurements on the right side Correlate significantly with the right-left measurements. Accordingly, the two halves of the anterior cranial fossa is asymmetrically designed. Problems relating to the line of demarcation between the median portion of the anterior and middle cranial fossae, as well as the possible eraniocerebrum relationship and clinical considerations are discussed.