Journal article

Anatomic analysis of the internal and external aspects of the pterion

  • Uz, Aysun Department of Anatomy, Ankara University School of Medicine, Morfoloji, Sihhiye, Ankara, Turkey - Department of Anatomy, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland - Department of Neuroscience, Ankara University Graduate School of Health Science, Ankara, Turkey
  • Korkmaz, Ali Can Department of Anatomy, Ankara University School of Medicine, Morfoloji, Sihhiye, Ankara, Turkey
  • Filgueira, Luis Department of Anatomy, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
  • Guner, Mehmet Ali Department of Anatomy, Ankara University School of Medicine, Morfoloji, Sihhiye, Ankara, Turkey - Department of Anatomy, University of Health Sciences Faculty of Medicine, Etlik, Ankara, Turkey
  • Tubbs, Richard Shane Department of Neurosurgery, Tulane University School of Medicine, New Orleans, Louisiana, USA - Department of Anatomical Sciences, St. George's University, Grenada, West Indies
  • Demirciler, Ayse Karatas Department of Neurosurgery, Ankara University School of Medicine, Morfoloji, Sihhiye, Ankara, Turkey - Department of Neurosurgery, Izmir Katip Celebi University, Ataturk Education and Research Hospital, Izmir, Turkey
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    01.05.2020
Published in:
  • World Neurosurgery. - 2020, vol. 137, p. 84–88
English Objective: The pterion is an H-shaped suture complex. This study's goal was to determine the location of its external and internal surfaces and extension and emphasize and discuss its surgical importance.Methods: Fifty dried adult human skulls were obtained from the Department of Anatomy. A 2-mm drill bit was placed externally over the pterion, and the pterion was drilled through the bone perpendicular to the skull's surface.Results: The midpoint of the H shape in the pterion area was not at the same level on the skull's external and internal pterion surfaces. According to these measurements, the external pterion lay above the internal pterion when the skull was viewed externally. Furthermore, the internal pterion was on average longer than the external pterion. The internal and external pterions were schematized such that the skull was viewed from the outside. These areas were divided into 4 quadrants (anterior-superior, anterior-inferior, posterior-superior, and posterior-inferior) by a vertical and horizontal line. In 30 cases (60%), sulci of the middle meningeal artery's parietal branches entered the posterior-superior quadrant on the bone, whereas the artery's frontal branches were located in the anterior-superior and anterior- inferior quadrants, and the Sylvian fissure's origin was in the posterior-inferior quadrant.Conclusions: By using a subdivision into 4 quadrants, and considering our anatomic findings, we determined the way surgical procedures can be performed more easily and reliably. Even with modern localization technologies, anatomic landmarks can be useful to the neurosurgeon.
Faculty
Faculté des sciences et de médecine
Department
Département de Médecine
Language
  • English
Classification
Biology
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/308730
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