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Morphological Study of Pterion in Dry Human Skull
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Why is it important?
Introduction: Pterion is irregularly H shape confluence of sutures on norma lateralis. It is an anthropological landmark situated in the floor of temporal fossa. Anterior division of middle meningeal artery is related to and commonly injured in trauma at pterion. Keeping in mind clinical and anthropological importance of pterion study was conducted. Aims and Objectives: To study sutural pattern of pterion based on Murphy’s classification. To locate the pterion above zygomatic arch and behind frontozygomatic suture. Material and Methods: 56 dry human skulls of known sex preserved by Anatomy Department, Government medical college Aurangabad were studied for pterion pattern. Location of pterion studied from midpoint of zygomatic arch to midpoint of pterion on both sides and mean is calculated for distance from frontozygomatic suture also. Distance is measured using digital vernier caliper having 0.01 mm accuracy. Results: : Percentage of pattern of pterion in present study is; Sphenoparietal 69.64% Epipteric bone 23.21%, Stellate 4.46% and Frontotemporal 2.68%. Mean distance of pterion in females is 3.8 cm from zygomatic arch and from frontozygomatic suture is 2.91cm. In males it is 3.87 cm and 2.92cm respectively. Conclusion: Sphenoparietal type of pterion is most frequent type of pterion in present study. Sutural pattern and location may vary in two sides in same subjects. Knowledge of morphology and distance of pterion from frontozygomatic suture and zygomatic arch is important for anthropologists, radiologists and neurosurgeons.As skull is thinnest at pterion ,it is useful in pterional approach in neurosurgery.
Perspectives
Introduction: Pterion is irregularly H shape confluence of sutures on norma lateralis. It is an anthropological landmark situated in the floor of temporal fossa. Anterior division of middle meningeal artery is related to and commonly injured in trauma at pterion. Keeping in mind clinical and anthropological importance of pterion study was conducted. Aims and Objectives: To study sutural pattern of pterion based on Murphy’s classification. To locate the pterion above zygomatic arch and behind frontozygomatic suture. Material and Methods: 56 dry human skulls of known sex preserved by Anatomy Department, Government medical college Aurangabad were studied for pterion pattern. Location of pterion studied from midpoint of zygomatic arch to midpoint of pterion on both sides and mean is calculated for distance from frontozygomatic suture also. Distance is measured using digital vernier caliper having 0.01 mm accuracy. Results: : Percentage of pattern of pterion in present study is; Sphenoparietal 69.64% Epipteric bone 23.21%, Stellate 4.46% and Frontotemporal 2.68%. Mean distance of pterion in females is 3.8 cm from zygomatic arch and from frontozygomatic suture is 2.91cm. In males it is 3.87 cm and 2.92cm respectively. Conclusion: Sphenoparietal type of pterion is most frequent type of pterion in present study. Sutural pattern and location may vary in two sides in same subjects. Knowledge of morphology and distance of pterion from frontozygomatic suture and zygomatic arch is important for anthropologists, radiologists and neurosurgeons.As skull is thinnest at pterion ,it is useful in pterional approach in neurosurgery.
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This page is a summary of: Morphological Study of Pterion in Dry Human Skull, Indian Journal of Anatomy, June 2020, Red Flower Publication Private, Ltd.,
DOI: 10.21088/ija.2320.0022.9220.5.
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