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Morphometric Analysis of Glasscock’s Triangle
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| Author:
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BIANCA PRINCETON, DINESH PREMAVATHY
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| Abstract:
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The Glasscock’s triangle is an important imaginary triangle present in the middle cranial fossa. It is otherwise called a posterolateral triangle. The indispensable contents of this triangle consists of the lesser and greater petrosal nerve, Eustachian tube, tensor tympani muscle, middle meningeal artery and the horizontal petrous internal carotid artery. One of the most prominent components exposed across the Glasscock’s triangle is the cavernous sinus. It is a true dural venous sinus of extreme significance due to its location in the middle cranial fossa. Any clinical condition of the cavernous sinus may affect the structures related with it. The principle aim of the study is to morphometrically analyse the Glasscock’s triangle. So, 35 South Indian dry skulls from Saveetha Dental College & Hospitals were used to measure the borders of the Glasscock’s triangle. The results were tabulated in the form of bar graphs. The imaginary line extending from arcuate eminence to foramen spinosum, greater petrosal nerve cuts the mandibular nerve to the arcuate eminence, and line between foramen spinosum to the part where the greater petrosal nerve cuts the mandibular nerve were measured using a digital vernier callipers. The Glasscock’s triangle is the principal paraclival corridor which is primarily used for the exposure of the horizontal petrous part of the internal carotid artery, or the cavernous sinus. Thus the present study concluded that this morphometric knowledge of this triangle is very important and very much for cranial base surgeries.
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| Keyword:
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Glasscock’s triangle, cavernous sinus aneurysm, arcuate eminence posterolateral triangle
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| EOI:
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| DOI:
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https://doi.org/10.31838/ijpr/2020.12.03.450
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| Download:
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