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A Computed Tomographic Study of Vietnamese C1-C2 Morphology for Atlantoaxial Crew Fixation Techniques

OBJECTIVES: This study aimed to define variations in radiological C1 and C2 measurements among Vietnamese subjects and to determine the feasibility of implementing C1-2 fixation techniques. MATERIAL AND METHODS: From October 2017 to April 2018, 120 patients underwent thin slide computed tomography (...

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Autores principales: Hung, Nguyen Duy, Duc, Nguyen Minh, Dung, Le Viet, Sy, Than Van, Dung, Le Thanh, Hue, Nguyen Duy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Scientific Scholar 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7656043/
https://www.ncbi.nlm.nih.gov/pubmed/33194305
http://dx.doi.org/10.25259/JCIS_121_2020
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author Hung, Nguyen Duy
Duc, Nguyen Minh
Dung, Le Viet
Sy, Than Van
Dung, Le Thanh
Hue, Nguyen Duy
author_facet Hung, Nguyen Duy
Duc, Nguyen Minh
Dung, Le Viet
Sy, Than Van
Dung, Le Thanh
Hue, Nguyen Duy
author_sort Hung, Nguyen Duy
collection PubMed
description OBJECTIVES: This study aimed to define variations in radiological C1 and C2 measurements among Vietnamese subjects and to determine the feasibility of implementing C1-2 fixation techniques. MATERIAL AND METHODS: From October 2017 to April 2018, 120 patients underwent thin slide computed tomography (CT) scans of the cervical spine, in our hospital. Various dimensions of the C1 and C2 were analyzed, using axial and sagittal reconstructions of CT images. Differences in characteristics between the two sides and between sexes were investigated, using Student’s t-test, with significance at P < 0.05. RESULTS: The mean anteroposterior dimension and the transverse width of the C1 lateral mass were 19.7 ± 2.1 mm and 12.2 ± 1.7 mm, respectively. The mean angles of the screw, directed to the maximal medial, lateral, cranial, and caudal directions, were 36.6 ± 2.8°, 28.2 ± 3.0°, 49.6 ± 4.1°, and 26.4 ± 5.5°, respectively. The average isthmus height, internal height, and pedicle width of the C2 were 5.8 ± 1.0 mm, 4.8 ± 1.3 mm, and 5.0 ± 1.3 mm, respectively. No significant differences were observed for any parameters, between the left and right side of the C1 or C2 or between the two sexes. CONCLUSION: This study revealed that the morphology of the C1 and C2 did not differ between genders in the studied subjects, but morphologic variations exist between Vietnamese subjects and other populations. Pre-operative anatomy evaluations based on CT data are essential be performed for screw placement and trajectory planning to avoid neurovascular complications and to enhance the treatment outcome.
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spelling pubmed-76560432020-11-13 A Computed Tomographic Study of Vietnamese C1-C2 Morphology for Atlantoaxial Crew Fixation Techniques Hung, Nguyen Duy Duc, Nguyen Minh Dung, Le Viet Sy, Than Van Dung, Le Thanh Hue, Nguyen Duy J Clin Imaging Sci Original Research OBJECTIVES: This study aimed to define variations in radiological C1 and C2 measurements among Vietnamese subjects and to determine the feasibility of implementing C1-2 fixation techniques. MATERIAL AND METHODS: From October 2017 to April 2018, 120 patients underwent thin slide computed tomography (CT) scans of the cervical spine, in our hospital. Various dimensions of the C1 and C2 were analyzed, using axial and sagittal reconstructions of CT images. Differences in characteristics between the two sides and between sexes were investigated, using Student’s t-test, with significance at P < 0.05. RESULTS: The mean anteroposterior dimension and the transverse width of the C1 lateral mass were 19.7 ± 2.1 mm and 12.2 ± 1.7 mm, respectively. The mean angles of the screw, directed to the maximal medial, lateral, cranial, and caudal directions, were 36.6 ± 2.8°, 28.2 ± 3.0°, 49.6 ± 4.1°, and 26.4 ± 5.5°, respectively. The average isthmus height, internal height, and pedicle width of the C2 were 5.8 ± 1.0 mm, 4.8 ± 1.3 mm, and 5.0 ± 1.3 mm, respectively. No significant differences were observed for any parameters, between the left and right side of the C1 or C2 or between the two sexes. CONCLUSION: This study revealed that the morphology of the C1 and C2 did not differ between genders in the studied subjects, but morphologic variations exist between Vietnamese subjects and other populations. Pre-operative anatomy evaluations based on CT data are essential be performed for screw placement and trajectory planning to avoid neurovascular complications and to enhance the treatment outcome. Scientific Scholar 2020-10-13 /pmc/articles/PMC7656043/ /pubmed/33194305 http://dx.doi.org/10.25259/JCIS_121_2020 Text en © 2020 Published by Scientific Scholar on behalf of Journal of Clinical Imaging Science https://creativecommons.org/licenses/by-nc-sa/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Research
Hung, Nguyen Duy
Duc, Nguyen Minh
Dung, Le Viet
Sy, Than Van
Dung, Le Thanh
Hue, Nguyen Duy
A Computed Tomographic Study of Vietnamese C1-C2 Morphology for Atlantoaxial Crew Fixation Techniques
title A Computed Tomographic Study of Vietnamese C1-C2 Morphology for Atlantoaxial Crew Fixation Techniques
title_full A Computed Tomographic Study of Vietnamese C1-C2 Morphology for Atlantoaxial Crew Fixation Techniques
title_fullStr A Computed Tomographic Study of Vietnamese C1-C2 Morphology for Atlantoaxial Crew Fixation Techniques
title_full_unstemmed A Computed Tomographic Study of Vietnamese C1-C2 Morphology for Atlantoaxial Crew Fixation Techniques
title_short A Computed Tomographic Study of Vietnamese C1-C2 Morphology for Atlantoaxial Crew Fixation Techniques
title_sort computed tomographic study of vietnamese c1-c2 morphology for atlantoaxial crew fixation techniques
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7656043/
https://www.ncbi.nlm.nih.gov/pubmed/33194305
http://dx.doi.org/10.25259/JCIS_121_2020
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