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Surgical and Radiologic Anatomy

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01-07-2020 | Computed Tomography | Original Article

Anatomical evaluation of the craniovertebral junction on cone-beam computed tomography images

Authors: Sefkan Tanrisever, Mustafa Orhan, İlhan Bahşi, Eda Didem Yalçin

Published in: Surgical and Radiologic Anatomy | Issue 7/2020

Abstract

Introduction

There are many craniometric measurements that are used in evaluating craniovertebral junction (CVJ) pathologies such as basilar invagination, atlantoaxial dislocation and platybasia. Therefore, it is important to determine the normal reference range of the craniometric measurements. This study aims to determine the morphometric reference values of the bony structures in the CVJ from cone-beam computed tomography (CBCT) images of a group of South Eastern Anatolian population.

Materials and methods

The CBCT images of 300 individuals were retrospectively evaluated. 14 parameters on midsagittal and 2 parameters on the coronal plane were studied. The data were statistically evaluated.

Results

Measurement results were found as follows; the distances between odontoid process (OP) and McGregor line as 0.31 ± 3.22 mm, OP and Chamberlain line 1.06 ± 3.22 mm, OP and McRae line 5.30 ± 1.59 mm, OP and Fischgold digastric line 8.70 ± 4.12 mm, OP and Fischgold bimastoid line − 5.15 ± 4.86 mm, length of McRae line 35.58 ± 2.52 mm, atlantodental interval 1.28 ± 0.48 mm, posterior atlantodental interval 19.54 ± 2.24 mm, basion axial interval 4.01 ± 1.83 mm, basion dental interval 4.92 ± 1.77 mm, length of Modified Ranawat line 28.66 ± 2.38 mm, length of Redlund-Johnell line 35.11 ± 4.09 mm, clivus canal angle 157.62° ± 11.85°, Welcher basal angle 130.83° ± 6.29°, craniocervical tilt 126.98° ± 12.24° and Powers ratio as 0.72 ± 0.06.

Conclusion

In this study, the morphometric values were evaluated according to age and gender in individuals who did not have any radiologic anomalies. The normal reference ranges may be useful for researchers who are researching pathology in this region. It is recommended to conduct further studies with different populations to determine the normal reference range.

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Title: Anatomical evaluation of the craniovertebral junction on cone-beam computed tomography images
Authors: Sefkan Tanrisever
Mustafa Orhan
İlhan Bahşi
Eda Didem Yalçin
Publication date: 01-07-2020
Publisher: Springer Paris
Keywords: Computed Tomography
Computed Tomography
Digital Volume Tomography
Digital Volume Tomography
Invagination
Published in: Surgical and Radiologic Anatomy / Issue 7/2020
Print ISSN: 0930-1038
Electronic ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-020-02457-z

At a glance: The STEP trials

Springer Medicine

Anatomical evaluation of the craniovertebral junction on cone-beam computed tomography images

Abstract

Introduction

Materials and methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Introduction

Materials and methods

Results

Conclusion

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