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Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images
Introduction: The T1 slope is important for cervical surgical planning, and it may be invisible on radiographic images. The prevalence of T1 invisible cases and the differences in demographic and radiographic characteristics between patients whose T1 slopes are visible or invisible remains unexplore...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8781184/ https://www.ncbi.nlm.nih.gov/pubmed/35054105 http://dx.doi.org/10.3390/jcm11020411 |
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author | Ito, Sadayuki Nakashima, Hiroaki Matsumoto, Akiyuki Ando, Kei Machino, Masaaki Segi, Naoki Tomita, Hiroyuki Koshimizu, Hiroyuki Imagama, Shiro |
author_facet | Ito, Sadayuki Nakashima, Hiroaki Matsumoto, Akiyuki Ando, Kei Machino, Masaaki Segi, Naoki Tomita, Hiroyuki Koshimizu, Hiroyuki Imagama, Shiro |
author_sort | Ito, Sadayuki |
collection | PubMed |
description | Introduction: The T1 slope is important for cervical surgical planning, and it may be invisible on radiographic images. The prevalence of T1 invisible cases and the differences in demographic and radiographic characteristics between patients whose T1 slopes are visible or invisible remains unexplored. Methods: This pilot study aimed to evaluate the differences in these characteristics between outpatients whose T1 slopes were visible or invisible on radiographic images. Patients (n = 60) who underwent cervical radiography, whose T1 slope was confirmed clearly, were divided into the visible (V) group and invisible (I) group. The following radiographic parameters were measured: (1) C2-7 sagittal vertical axis (SVA), (2) C2-7 angle in neutral, flexion, and extension positions. Results: Based on the T1 slope visibility, 46.7% of patients were included in group I. The I group had significantly larger C2-7 SVA than the V group for males (p < 0.05). The C2-7 SVA tended to be larger in the I group, without significant difference for females (p = 0.362). Discussion: The mean C2-7 angle in neutral and flexion positions was not significantly different between the V and I groups for either sex. The mean C2-7 angle in the extension position was greater in the V group. The T1 slope was invisible in males with high C2-7 SVA. |
format | Online Article Text |
id | pubmed-8781184 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87811842022-01-22 Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images Ito, Sadayuki Nakashima, Hiroaki Matsumoto, Akiyuki Ando, Kei Machino, Masaaki Segi, Naoki Tomita, Hiroyuki Koshimizu, Hiroyuki Imagama, Shiro J Clin Med Article Introduction: The T1 slope is important for cervical surgical planning, and it may be invisible on radiographic images. The prevalence of T1 invisible cases and the differences in demographic and radiographic characteristics between patients whose T1 slopes are visible or invisible remains unexplored. Methods: This pilot study aimed to evaluate the differences in these characteristics between outpatients whose T1 slopes were visible or invisible on radiographic images. Patients (n = 60) who underwent cervical radiography, whose T1 slope was confirmed clearly, were divided into the visible (V) group and invisible (I) group. The following radiographic parameters were measured: (1) C2-7 sagittal vertical axis (SVA), (2) C2-7 angle in neutral, flexion, and extension positions. Results: Based on the T1 slope visibility, 46.7% of patients were included in group I. The I group had significantly larger C2-7 SVA than the V group for males (p < 0.05). The C2-7 SVA tended to be larger in the I group, without significant difference for females (p = 0.362). Discussion: The mean C2-7 angle in neutral and flexion positions was not significantly different between the V and I groups for either sex. The mean C2-7 angle in the extension position was greater in the V group. The T1 slope was invisible in males with high C2-7 SVA. MDPI 2022-01-14 /pmc/articles/PMC8781184/ /pubmed/35054105 http://dx.doi.org/10.3390/jcm11020411 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ito, Sadayuki Nakashima, Hiroaki Matsumoto, Akiyuki Ando, Kei Machino, Masaaki Segi, Naoki Tomita, Hiroyuki Koshimizu, Hiroyuki Imagama, Shiro Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images |
title | Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images |
title_full | Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images |
title_fullStr | Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images |
title_full_unstemmed | Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images |
title_short | Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images |
title_sort | differences in demographic and radiographic characteristics between patients with visible and invisible t1 slopes on lateral cervical radiographic images |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8781184/ https://www.ncbi.nlm.nih.gov/pubmed/35054105 http://dx.doi.org/10.3390/jcm11020411 |
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