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CC BY-NC-ND 4.0 · Asian J Neurosurg 2023; 18(03): 581-586
DOI: 10.1055/s-0043-1772759
Original Article

Analysis of the Variations in the Morphology, Topography of the Pterion, and Their Implications in Neurosurgery: An Osteometric Study

Navita Aggarwal
1   Department of Anatomy, All India Institute of Medical Sciences, Bathinda, Punjab, India
,
Noopinder Kaur
2   Department of Anatomy, Adesh Institute of Medical Sciences and Research, Bathinda, Punjab, India
,
Apurba Patra 
1   Department of Anatomy, All India Institute of Medical Sciences, Bathinda, Punjab, India
,
Monika Gupta
2   Department of Anatomy, Adesh Institute of Medical Sciences and Research, Bathinda, Punjab, India
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Funding None.
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Abstract

Objective Pterion is an “H” shaped formation of sutures located in the temporal fossa of the skull. It is an important anatomical landmark and a craniometric point. The thinness of the skull and its inner relation with the middle meningeal artery make this anatomical landmark clinically significant. Variations in the pterion are imperative, especially for neurosurgeons in order to have the most suitable craniometric point to be minimally invasive.

Materials and Methods One hundred pterions were studied to report the variations in the type and location of the pterion. Murphy's classification was used to classify the pterion into four types on the basis of bone articulation-sphenoparietal, frontotemporal, stellate, and epipteric.

Results All four types of pterions were observed, sphenoparietal being the most common. No significant gender difference was observed in terms of type and laterality of various pterions. The mean distance between the center of pterion to the superolateral point of zygomaticotemporal (PZT) suture and the anterolateral point of the frontozygomatic (PFZ) suture were 3.91 ± 3.79 cm and 3.68 ± 3.79 mm, respectively. Correlation analysis showed a strong positive relation between PZT and PFZ sutures.

Conclusion Accurate data on the morphology and morphometry of bony anatomical points are crucial, while performing intracranial surgery using them as recognizable landmarks. The morphometric parameters may help in determining the soundness of the pterion as an identifiable landmark for performing interventions like burr hole and other neurosurgical procedures in this area.

Keywords

cranial sutures - craniotomy - burr hole - pterion - middle meningeal artery

Authors' Contributions

N. Aggarwal helped in project development, data collection, and manuscript writing; Noopinder Kaur contributed to data collection and manuscript writing; A Patra was involved in data analysis and manuscript editing; Monika Gupta wrote the manuscript.




Publikationsverlauf

Artikel online veröffentlicht:
31. August 2023

© 2023. Asian Congress of Neurological Surgeons. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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