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Coluna/Columna

Print version ISSN 1808-1851On-line version ISSN 2177-014X

Abstract

ZELADA, FLÁVIO GERARDO BENITES et al. COMPUTED TOMOGRAPHY MORPHOMETRIC ANALYSIS OF THE VERTEBRAE C7 AND T1. Coluna/Columna [online]. 2016, vol.15, n.3, pp.205-208. ISSN 2177-014X.  https://doi.org/10.1590/S1808-185120161503146815.

Objective:

The anatomical study of the vertebrae C7 and T1 of the cervicothoracic junction aimed to evaluate quantitatively, by axial computerized tomography (CT), the linear and angular dimensions of the anatomical laminae of the vertebrae of the cervicothoracic junction C7 and T1 in adults over 18 years.

Methods:

We retrospectively analyzed 49 CT of the cervical and thoracic spine (C7 and T1) of individuals over 18 years, of both sexes. We also evaluated the length and thickness of the laminae, as well as spinolaminar angle in axial sections of C7 and T1 at the point of least thickness between the inner cortical layers. The variables were correlated with age groups and sex of the individuals. Statistical analysis was performed using the t test and the results were considered significant when p<0.05.

Results:

After analyzing tomographic measurements of 49 patients, it was found that men had greater laminae thickness than women, both in C7 and T1, with 71% of C7 laminae and 92% of T1 laminae thicker than 5mm, and 97% of C7 laminae and 100% of T1 thicker than 4mm. The mean spinolaminar angle was 56.40 degrees in C7 and 57.31 degrees in T1.

Conclusion:

This study brings important anatomical information about the cervicothoracic junction C7 and T1 in the Brazilian population, showing that fixation of C7 and T1 with intralaminar screws is anatomically possible.

Keywords : Tomography, x-ray computed; Spine; Cervical vertebrae; Thoracic vertebrae.

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