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The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration

STUDY DESIGN: Retrospective evaluation. PURPOSE: To analyze the effect of T1 slope on degree of degeneration in patients with cervical disc degeneration. OVERVIEW OF LITERATURE: The T1 slope is well known parameter that may be very useful in evaluating sagittal balance. There are no reports on the a...

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Autores principales: Yang, Bong-Seok, Lee, Su-Keon, Song, Kyung-Sub, Yoon, Sang-Pil, Jang, Geun, Lee, Chae-Chul, Moon, Seong-Hwan, Lee, Hwan-Mo, Lee, Seung-Hwan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Society of Spine Surgery 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4591448/
https://www.ncbi.nlm.nih.gov/pubmed/26435795
http://dx.doi.org/10.4184/asj.2015.9.5.757
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author Yang, Bong-Seok
Lee, Su-Keon
Song, Kyung-Sub
Yoon, Sang-Pil
Jang, Geun
Lee, Chae-Chul
Moon, Seong-Hwan
Lee, Hwan-Mo
Lee, Seung-Hwan
author_facet Yang, Bong-Seok
Lee, Su-Keon
Song, Kyung-Sub
Yoon, Sang-Pil
Jang, Geun
Lee, Chae-Chul
Moon, Seong-Hwan
Lee, Hwan-Mo
Lee, Seung-Hwan
author_sort Yang, Bong-Seok
collection PubMed
description STUDY DESIGN: Retrospective evaluation. PURPOSE: To analyze the effect of T1 slope on degree of degeneration in patients with cervical disc degeneration. OVERVIEW OF LITERATURE: The T1 slope is well known parameter that may be very useful in evaluating sagittal balance. There are no reports on the analysis of the relationship between T1 slope and cervical disc degeneration. We hypothesized that T1 slope has an effect on the degree of cervical degeneration. METHODS: Sixty patients who had cervical spine magnetic resonance imaging (MRI) in our orthopedic clinic were enrolled. Patients were divided into two groups according to T1 slope. Radiologic parameters obtained from radiography and cervical spine MRI were compared between low T1 slope group (≤25) and high T1 slope group (>25). RESULTS: Among low T1 slope group, average degeneration grade of each cervical segment was 2.65 in C2-3, 2.50 in C3-4, 2.62 in C4-5, 3.23 in C5-6, and 2.81 in C6-7. And that of high T1 group was 2.35 in C2-3, 2.32 in C3-4, 2.59 in C4-5, 2.79 in C5-6, and 2.32 in C6-7. Grade of degeneration of low T1 group was significantly higher, as compared with high T1 group in C5-6 (p=0.028) and C6-7 (p=0.009). Percentage of high grade degeneration of more than grand III was 65.4% in low T1 group and 32.4% in high T1 group (p=0.018). Risk of high grade degeneration of C6-7 was significantly higher in low T1 group (odds ratio, 5.63; 95% confidence interval, 1.665-19.057; p=0.005). CONCLUSIONS: Patients with low T1 slope had higher grade of degeneration regardless of age and gender. Low T1 slope is a potential risk factor of cervical spondylosis especially in the C6-7 cervical segment.
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spelling pubmed-45914482015-10-04 The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration Yang, Bong-Seok Lee, Su-Keon Song, Kyung-Sub Yoon, Sang-Pil Jang, Geun Lee, Chae-Chul Moon, Seong-Hwan Lee, Hwan-Mo Lee, Seung-Hwan Asian Spine J Clinical Study STUDY DESIGN: Retrospective evaluation. PURPOSE: To analyze the effect of T1 slope on degree of degeneration in patients with cervical disc degeneration. OVERVIEW OF LITERATURE: The T1 slope is well known parameter that may be very useful in evaluating sagittal balance. There are no reports on the analysis of the relationship between T1 slope and cervical disc degeneration. We hypothesized that T1 slope has an effect on the degree of cervical degeneration. METHODS: Sixty patients who had cervical spine magnetic resonance imaging (MRI) in our orthopedic clinic were enrolled. Patients were divided into two groups according to T1 slope. Radiologic parameters obtained from radiography and cervical spine MRI were compared between low T1 slope group (≤25) and high T1 slope group (>25). RESULTS: Among low T1 slope group, average degeneration grade of each cervical segment was 2.65 in C2-3, 2.50 in C3-4, 2.62 in C4-5, 3.23 in C5-6, and 2.81 in C6-7. And that of high T1 group was 2.35 in C2-3, 2.32 in C3-4, 2.59 in C4-5, 2.79 in C5-6, and 2.32 in C6-7. Grade of degeneration of low T1 group was significantly higher, as compared with high T1 group in C5-6 (p=0.028) and C6-7 (p=0.009). Percentage of high grade degeneration of more than grand III was 65.4% in low T1 group and 32.4% in high T1 group (p=0.018). Risk of high grade degeneration of C6-7 was significantly higher in low T1 group (odds ratio, 5.63; 95% confidence interval, 1.665-19.057; p=0.005). CONCLUSIONS: Patients with low T1 slope had higher grade of degeneration regardless of age and gender. Low T1 slope is a potential risk factor of cervical spondylosis especially in the C6-7 cervical segment. Korean Society of Spine Surgery 2015-10 2015-09-22 /pmc/articles/PMC4591448/ /pubmed/26435795 http://dx.doi.org/10.4184/asj.2015.9.5.757 Text en Copyright © 2015 by Korean Society of Spine Surgery http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Clinical Study
Yang, Bong-Seok
Lee, Su-Keon
Song, Kyung-Sub
Yoon, Sang-Pil
Jang, Geun
Lee, Chae-Chul
Moon, Seong-Hwan
Lee, Hwan-Mo
Lee, Seung-Hwan
The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration
title The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration
title_full The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration
title_fullStr The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration
title_full_unstemmed The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration
title_short The Use of T1 Sagittal Angle in Predicting Cervical Disc Degeneration
title_sort use of t1 sagittal angle in predicting cervical disc degeneration
topic Clinical Study
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4591448/
https://www.ncbi.nlm.nih.gov/pubmed/26435795
http://dx.doi.org/10.4184/asj.2015.9.5.757
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