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INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH

A Step Towards Excellence
Published by : Advanced Scientific Research
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0975-2366
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IJPR 9[3] July - September 2017 Special Issue

July - September 9[3] 2017

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Incidence and clinical relevance of pterygospinous bar and pterygoalar bridges in dry human skulls

Author: K.HELEN RESHMA, KARTHIK GANESH MOHANRAJ, THENMOZHI.M.S
Abstract: Pterygospinous and pterygoalar ligaments are present at the base of the cranium. It has a pterygospinous process, from which the pterygospinous ligament extends backwards and laterally to the spine of the sphenoid. This ligament gets ossified as a pterygospinous bar sometimes and a foramen is formed, pterygospinous foramen for the passage of muscular branches of mandibular nerve. These are of clinical importance because the ossification may cause the obliteration of the foramen ovale causing mandibular neuralgia. They cause trouble in performing thermocoagulation and anaesthesia for trigeminal neuralgia. They pose surgical difficulties and anatomy of these bony bars is very important. 50 human dry skulls were taken, cleaned and observed for the presence of completely and incompletely ossified pterygospinous bars and pterygospinous bridges. Pterygospinous bar was found only in 5 out of 50 skulls. It was present in about 10% of skulls. The anatomical knowledge of these osseous bars is very important and necessary for anaesthetists, dentists and neurosurgeons to increase the success of diagnostic evaluation and surgical approaches to the cranial base.
Keyword: Skull, ligament, ossification, pterygospinous bar, pterygoalar bridge.
DOI: https://doi.org/10.31838/ijpr/2020.12.03.338
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