C2-C3 vertebral disc angle: An analysis of patients with and without cervical spondylotic myelopathy.
Cervical myelopathy
Normal cervical alignment
Radiologic index
Risk predictors
Spine surgery
Journal
Neuro-Chirurgie
ISSN: 1773-0619
Titre abrégé: Neurochirurgie
Pays: France
ID NLM: 0401057
Informations de publication
Date de publication:
Jul 2021
Jul 2021
Historique:
received:
31
10
2020
revised:
15
01
2021
accepted:
28
02
2021
pubmed:
25
3
2021
medline:
14
7
2021
entrez:
24
3
2021
Statut:
ppublish
Résumé
Retrospective analysis. To define C2-C3 vertebral disc angle (VDA) in patients with and without cervical spondylotic myelopathy. C2-C3 VDA is a new radiological index of cervical spine alignment. Recent studies have suggested that high postoperative values are associated with greater mechanical complications in patients with cervical spondylotic myelopathy. However, normative values for patients without myelopathy has yet to be defined. Patients with and without cervical myelopathy between 2017 and 2019 were included. Inclusion criteria were patients above 18 years of age with antero-posterior (AP) and lateral (LAT) cervical X-rays. In the non-myelopathic group, patients were excluded if they had neurological symptoms or deficits, presence of cervical axial pain, previous spinal surgery, or diagnosis of either spondylolisthesis or scoliosis. In the myelopathic group, patients were excluded if they had previous spinal surgery. Radiological indices evaluated include: C2-C3 disc angle, C2-C7 Cobb angle, C7 sagittal vertical axis, T1 slope. In total, 99 patients without myelopathy and 22 patients with myelopathy were identified and analyzed. In patients without myelopathy, the mean for C2-C3 VDA was 25.9±7.9. For patients with myelopathy, preoperative values were 24.4±10.0 and 27.1±7.9 postoperatively. No statistically significant differences were found between patients with and without myelopathy. C2-C3 disc angle was not correlated with age (R=-0.173). This study did not find statistically significant differences in C2-C3 VDA values between patients with and without cervical myelopathy. This study provides normative data for C2-C3 vertebral disc angle in patients with and without cervical spondylotic myelopathy. Furthermore, C2-C3 vertebral disc angle may be independent from age.
Sections du résumé
STUDY DESIGN
METHODS
Retrospective analysis.
OBJECTIVE
OBJECTIVE
To define C2-C3 vertebral disc angle (VDA) in patients with and without cervical spondylotic myelopathy.
SUMMARY OF BACKGROUND DATA
BACKGROUND
C2-C3 VDA is a new radiological index of cervical spine alignment. Recent studies have suggested that high postoperative values are associated with greater mechanical complications in patients with cervical spondylotic myelopathy. However, normative values for patients without myelopathy has yet to be defined.
METHODS
METHODS
Patients with and without cervical myelopathy between 2017 and 2019 were included. Inclusion criteria were patients above 18 years of age with antero-posterior (AP) and lateral (LAT) cervical X-rays. In the non-myelopathic group, patients were excluded if they had neurological symptoms or deficits, presence of cervical axial pain, previous spinal surgery, or diagnosis of either spondylolisthesis or scoliosis. In the myelopathic group, patients were excluded if they had previous spinal surgery. Radiological indices evaluated include: C2-C3 disc angle, C2-C7 Cobb angle, C7 sagittal vertical axis, T1 slope.
RESULTS
RESULTS
In total, 99 patients without myelopathy and 22 patients with myelopathy were identified and analyzed. In patients without myelopathy, the mean for C2-C3 VDA was 25.9±7.9. For patients with myelopathy, preoperative values were 24.4±10.0 and 27.1±7.9 postoperatively. No statistically significant differences were found between patients with and without myelopathy. C2-C3 disc angle was not correlated with age (R=-0.173).
CONCLUSION
CONCLUSIONS
This study did not find statistically significant differences in C2-C3 VDA values between patients with and without cervical myelopathy. This study provides normative data for C2-C3 vertebral disc angle in patients with and without cervical spondylotic myelopathy. Furthermore, C2-C3 vertebral disc angle may be independent from age.
Identifiants
pubmed: 33757775
pii: S0028-3770(21)00068-0
doi: 10.1016/j.neuchi.2021.02.013
pii:
doi:
Types de publication
Comparative Study
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
346-349Informations de copyright
Crown Copyright © 2021. Published by Elsevier Masson SAS. All rights reserved.