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Original article
Submitted: 2021-10-13
Accepted: 2021-10-29
Published online: 2021-11-16
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Morphometry and morphological analysis of carotico-clinoid foramen: an anatomical study with clinical implications

A. Priya1, R. K. Narayan2, S. K. Ghosh1, P. Kumar3
DOI: 10.5603/FM.a2021.0128
·
Pubmed: 34826131
Affiliations
  1. Department of Anatomy, All India Institute of Medical Sciences, Patna, India
  2. Department of Anatomy, Andaman and Nicobar Islands Institute of Medical Sciences, Port Blair, India
  3. Department of Radiodiagnosis, All India Institute of Medical Sciences, Patna, India

open access

Ahead of Print
ORIGINAL ARTICLES
Submitted: 2021-10-13
Accepted: 2021-10-29
Published online: 2021-11-16

Abstract

Background: The dural fold between anterior and middle clinoid processes on mineralization leads to the formation of caroticoclinoid foramen. Different morphology of this foramen presents with different clinical features. The present study reports the frequency of caroticoclinoid foramen in the population of Bihar, while providing an account of assimilated information from previous literature regarding the association of caroticoclinoid ligament ossification with age and human genetics. Materials and methods: The study was conducted on 100 adult dry human skulls of unknown age and sex, and 50 lateral view radiographs of the head. Results: Of the 100 dry skull bones, nine presented with different forms of caroticoclinoid foramina. Bilateral complete foramina were noticed in two skull bones (2%), while the incomplete foramina were observed bilaterally in three (3%) and unilaterally in four (4%) skulls. The lateral view radiograph data (n = 50) presented with a bilateral foramen in one subject and unilateral complete caroticoclinoid foramen in two different subjects. On measurements of the diameters of the complete caroticoclinoid foramen the mean values observed were 4.06 mm and 4.51 mm on the right side, while that on the left side were 5.15 mm and 4.14 mm.  For the incomplete foramina, the mean values for the vertical diameter were 4.48 mm on the right and 4.19 mm on the left side respectively. Conclusions: The frequency of CCF in the present study population of Bihar was much lesser than that of previously studied populations. However, the variation in frequency of different morphological types of CCF was observed to be the same across populations. The variations in CCF’s metric data could help in predicting the morphological changes it causes to the clinoidal segment of the ICA, as well as in distinguishing its varieties.

Abstract

Background: The dural fold between anterior and middle clinoid processes on mineralization leads to the formation of caroticoclinoid foramen. Different morphology of this foramen presents with different clinical features. The present study reports the frequency of caroticoclinoid foramen in the population of Bihar, while providing an account of assimilated information from previous literature regarding the association of caroticoclinoid ligament ossification with age and human genetics. Materials and methods: The study was conducted on 100 adult dry human skulls of unknown age and sex, and 50 lateral view radiographs of the head. Results: Of the 100 dry skull bones, nine presented with different forms of caroticoclinoid foramina. Bilateral complete foramina were noticed in two skull bones (2%), while the incomplete foramina were observed bilaterally in three (3%) and unilaterally in four (4%) skulls. The lateral view radiograph data (n = 50) presented with a bilateral foramen in one subject and unilateral complete caroticoclinoid foramen in two different subjects. On measurements of the diameters of the complete caroticoclinoid foramen the mean values observed were 4.06 mm and 4.51 mm on the right side, while that on the left side were 5.15 mm and 4.14 mm.  For the incomplete foramina, the mean values for the vertical diameter were 4.48 mm on the right and 4.19 mm on the left side respectively. Conclusions: The frequency of CCF in the present study population of Bihar was much lesser than that of previously studied populations. However, the variation in frequency of different morphological types of CCF was observed to be the same across populations. The variations in CCF’s metric data could help in predicting the morphological changes it causes to the clinoidal segment of the ICA, as well as in distinguishing its varieties.

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Keywords

caroticoclinoid foramen, human genetics, mineralization

About this article
Title

Morphometry and morphological analysis of carotico-clinoid foramen: an anatomical study with clinical implications

Journal

Folia Morphologica

Issue

Ahead of Print

Article type

Original article

Published online

2021-11-16

DOI

10.5603/FM.a2021.0128

Pubmed

34826131

Keywords

caroticoclinoid foramen
human genetics
mineralization

Authors

A. Priya
R. K. Narayan
S. K. Ghosh
P. Kumar

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