科研之友
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摘要
The pterion is a commonly used anthropologic and neurosurgical landmark defined as the junction of the sphenoid, temporal, parietal and frontal bones. It is commonly classified into four types based on sutural pattern: sphenoparietal, in which the sphenoid and parietal bones are in direct contact; frontotemporal, in which the frontal and temporal bones are in direct contact; stellate, in which all four bones come into contact at a point; and epipteric, in which a small sutural bone is found between the parietal bone and the greater wing of the sphenoid bone. In the present study, 44 Anatolian skulls from two different eras, Byzantine (13th century) and contemporary (20th century), were investigated for morphology and location of the pterion. Sphenoparietal was the most common form, comprising 87.5% and 89.2% in the Byzantine and contemporary groups, respectively. The frequencies of the epipteric type of pterion were 6.25% and 3.6% in the Byzantine and contemporary groups, respectively. Measurements of the location of the pterion were made by using stainless steel calipers and Scion Image software. There were no significant differences in digital and manual measurements between the right and left sides of the skulls in both groups. However, the distance from the pterion to the inion was significantly greater in the manual measurements compared to the digital measurements. Anatomical variations of the pterion, which are of interest to anthropologists, forensic pathologists and surgeons, deserve further investigation in other populations from different geographical areas. El pterion es un punto com迆nmente usado como punto de referencia antropol車gico y neuroquir迆rgico, correspondiendo a la uni車n de los huesos esfenoides, temporal, parietal y frontal. Generalmente es clasificado en 4 tipos basado en padrones suturales: esfenoparietal, en el cual los huesos esfenoides y parietal est芍n directamente en contacto; frontotemporal, en el cual el frontal y el temporal se encuentran en contacto directo; estrellado, en el cual los cuatro huesos mencionados se contactan directamente en un punto y epipt谷rico, en el cual un peque o hueso sutural se encuentra entre el hueso parietal y el ala mayor del esfenoides. En el presente estudio, investigamos la morfolog赤a y la localizaci車n del pterion en 44 cr芍neos Anatolian de diferentes 谷pocas, Bizantina (Siglo XIII) y contempor芍nea (Siglo XX). La forma m芍s com迆n que se encontr車 fue la Esfenoparietal, con un 87,5 % para los del grupo Bizantino y 89,2 % para los de la era contempor芍nea. La frecuencia del tipo epipt谷rico fue de 6,
