ISSN 1308-7649 | E-ISSN 2148-3817
Original Article
Morphometric Assessment of the Carotid Foramen for Lateral Surgical Approach
1 Department of Neurosurgery, Mersin University School of Medicine, Mersin, Turkey  
2 Department of Anatomy, Mersin University School of Medicine, Mersin, Turkey  
3 Department of Otorhinolaryngology, Mersin University School of Medicine, Mersin, Turkey  
4 Department of Radiology, Mersin University School of Medicine, Mersin, Turkey  
J Int Adv Otol 2019; 15: 222-228
DOI: 10.5152/iao.2019.6154
Key Words: Carotid canal, carotid foramen, lateral approach, skull base
Abstract

 

OBJECTIVES: This study aimed to compare the right and left sides of the carotid foramen (CF) to determine its precise location according to certain anatomical landmarks.

 

MATERIALS and METHODS: Twenty human dry skulls were included in the study. A digital caliper and a digital image analysis software were used to obtain direct anatomical numerical values. Then, the same parameters on dry skulls were assessed with computed tomography (CT).

 

RESULTS: CF was found to be round shaped (62.5%), oval shaped (32.5%), and tear-drop shaped (5%). In all cases, the position of CF was seen as just postero-laterally of the foramen lacerum. According to the jugular foramen, CF was seen to be anterior in 85% and antero-medial in 15% of the cases. Regarding the morphometric values of the surface area, the length and width of CF were observed to be 37.86±11.24 mm2, 8.02±1.09 mm, and 6.86±0.90 mm at direct anatomical measurements and 39.69±10.07 mm2, 7.89±1.14 mm, and 6.41±0.90 mm at CT, respectively. The angles between the supramastoid crest-CF-zygoma root and the supramastoid crest-CF-mastoid process were determined as 37.11±6.87º and 42.22±6.40º at direct anatomical measurements and 36.59±4.94º and 43.71±4.55º at CT, respectively.

 

CONCLUSION: A significant difference in sides was not observed in relation with the numerical data of CF obtained from CT or from direct anatomical measurements of dry skulls. Moreover, a significant difference was not found between radiological and direct anatomical measurements. Therefore, precise radiological assessment of this region by an experienced neuroradiologist may be assumed as a fundamental need for successful surgeries of the skull base, in addition to thorough anatomical knowledge of neurootologists and neurosurgeons.

 

Cite this article as: Özalp H, Beger O, Erdoğan O, Koç T, Kayan G, Hamzaoğlu V, et al. Morphometric Assessment of the Carotid Foramen for Lateral Surgical Approach. J Int Adv Otol 2019; 15(2): 222-8.

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AVES | Copyright © 2019 The European Academy of Otology and Neurotology | Latest Update: 15.08.2019