PDF(Pubmed)
Abstract：
The jugular foramen (JF) is located between the temporal and occipital bones. The JF is a primary pathway for venous outflow from the skull and passage of nerves. Variations are common in this region and may have clinical and surgical implications. To analyze the sexual dimorphism and JF morphology in skulls from Northeastern Brazil. 128 human skulls from the Anatomy Laboratory of the Federal University of Paraíba, 64 male and 64 female, were selected and the JFs analyzed for bone septation and the presence of a dome. Data analysis considered P<0.05 as significant. On at least one side, complete septation was observed in 26 skulls (20.3%), incomplete septation in 93 skulls (72.6%) and 61 skulls (47.6%) did not present septation. In 114 skulls (89%), 47.6% female and 41.4% male, have a unilateral presence of the dome and 71 (55.4%) have it bilaterally. Posterolateral compartment diameters and JF area had higher values on the right side in the total sample and separated by sex (P<0.05). Most morphometric variables of the anteromedial compartment were higher in male than in female (P<0.05), fact that was not observed in the posterolateral compartment (P>0.05). This study showed a higher prevalence of complete septation in males compared to females. Morphometric analysis presented a peculiar morphology of the JF in this study. These results suggests that the surgical approach to diseases that affect the JF may be peculiar to the studied population, confirming the importance of morphological analysis of the skull base.
摘要：
颈静脉孔（JF）位于颞骨和枕骨之间。JF是颅骨静脉流出和神经通道的主要途径。变异在该地区很常见，可能具有临床和手术意义。分析巴西东北部头骨的性二态和JF形态。来自帕拉伊巴联邦大学解剖学实验室的128个人类头骨，64男64女,选择了JF，分析了骨间隔和圆顶的存在。数据分析认为P<0.05为显著的。至少在一侧,在26个头骨（20.3％）中观察到完全隔离，93个头骨（72.6％）和61个头骨（47.6％）的不完全隔离没有出现隔离。114个头骨(89%),女性占47.6％，男性占41.4％，有一个单边存在的圆顶和71（55.4%）有它的双边。后外侧隔室直径和JF面积在总样本中右侧具有较高的值，并按性别分开（P<0.05）。男性前腔的大多数形态变量高于女性（P<0.05），在后外侧区室未观察到的事实(P>0.05)。这项研究表明，与女性相比，男性完全隔断的患病率更高。形态计量学分析在这项研究中提出了JF的特殊形态。这些结果表明，影响JF的疾病的手术方法可能是研究人群所特有的，确认颅底形态学分析的重要性。
