Department of Human Anatomy, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia.
J Craniofac Surg. 2021 May 1;32(3):1171-1173. doi: 10.1097/SCS.0000000000007364.
The asterion is a craniometric point in the norma lateralis of skull situated at the confluence of parietal, temporal, and occipital bones. The aim of this study is to determine the type and mapping of asterion and its relation with transverse-sigmoid venous sinus junction (TSSJ).
Sixty-one dry and intact adult human skulls of unknown sex and age were used. The measurements were implemented using stainless steel sliding vernier caliper. The data were analyzed using SPSS version-20 and independent t-test analysis was implemented. P < 0.05 was considered as statistically significant.
In the study, type II was found to be the predominant asterion type. There was statistically significant difference in measurements of central thickness of right and left sides of asterion (P = 0.04, Eta squared = 0.025). Besides, the TSSJ was situated above the asterion and at the level of asterion in 39.34% and 60.66 of the cases, respectively.
The Northwest Ethiopian population has a high incidence of type II asterion. In most of the cases, the TSSJ is situated at the level of the asterion. The finding of the present study may be useful to neurosurgeons to reduce the risk during posterior cranial fossa surgeries. This work may also offer worthy information to radiologists, anthropologists, anatomists, and forensic scientists.
星点是颅骨外侧线上的一个颅测量点，位于顶骨、颞骨和枕骨的交汇处。本研究旨在确定星点的类型和定位及其与横窦-乙状窦交界处（TSSJ）的关系。
使用 61 个干燥、完整的未知性别和年龄的成人颅骨进行研究。使用不锈钢滑动游标卡尺进行测量。使用 SPSS 版本-20 进行数据分析，并实施独立 t 检验分析。P<0.05 被认为具有统计学意义。
在本研究中，发现 II 型是主要的星点类型。星点左右两侧中心厚度的测量存在统计学显著差异（P=0.04，Eta 平方=0.025）。此外，TSSJ 位于星点上方和星点水平，分别占 39.34%和 60.66%的病例。
西北埃塞俄比亚人群中 II 型星点的发生率较高。在大多数情况下，TSSJ 位于星点水平。本研究的发现可能对神经外科医生在颅后窝手术中降低风险有用。这项工作还可以为放射科医生、人类学家、解剖学家和法医学家提供有价值的信息。
