Diagnostic Value of T1 Slope in Degenerative Cervical Spondylotic Myelopathy

Sun, Jiao; Zhao, Hongwei; Wang, Junjie; Xia, Liang; Fu, Na-Xin; Huang, Hui

doi:10.12659/msm.906417

Cited by 19 publications

(19 citation statements)

References 31 publications

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“…Measuring C7 instead of T1 has been recommended by several authors because C7 is clearly visible than T1 in more patients, C2-6 Cobb angle and C7 slope are correlated well with C2-7 angle and T1 slope. 69,[103][104][105][106]…”

Section: Conventional Radiographs and Positional Variationsmentioning

confidence: 99%

Cervical Sagittal Alignment: Literature Review and Future Directions

Hyun

Jain

2020

Neurospine

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Cervical alignment as a concept has come to the forefront for spine deformity research in the last decade. Studies on cervical sagittal alignment started from normative data, and expanded into correlation with global sagittal balance, prognosis of various conditions, outcomes of surgery, definition and classification of cervical deformity, and prediction of targets for ideal cervical reconstruction. Despite the recent robust research efforts, the definition of normal cervical sagittal alignment and cervical spine deformity continues to elude us. Further, many studies continue to view cervical alignment as a continuation of thoracolumbar deformity and do not take into account biomechanical features unique to the cervical spine that may influence cervical alignment, such as the importance of musculature connecting cranium-cervical-thoracic spine and upper extremities. In this article, we aim to summarize the relevant literature on cervical sagittal alignment, discuss key results, and list potential future direction for research using the '5W1H' framework; "WHO" are related?,

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Section: Conventional Radiographs and Positional Variationsmentioning

confidence: 99%

Cervical Sagittal Alignment: Literature Review and Future Directions

Hyun

Jain

2020

Neurospine

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“…When T1 slope was less than 18.5°, it showed significant diagnostic value for the incidence of degenerative cervical disease. Yet, most of the cervical curvature in their study were lordosis, CK was not included [17] .…”

Section: Discussionmentioning

confidence: 99%

The impact of cervical sagittal parameters on axial neck pain in patients with cervical kyphosis

Zhang

Shen

2020

Preprint

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Background:Cervical sagittal alignment is closely related with cervical disc degeneration and impacts the spinal function and quality of life, especially for cervical kyphosis (CK). The purpose of this study was to evaluate the influence of cervical sagittal parameters on the axial neck pain (ANP) in patients with CK.Methods: A retrospective analysis was performed of data from 263 patients who underwent to the authors' department of this institution between January 2012 and December 2018. Radiographic evaluations were performed at authors' department, including CK types, C2-7 sagittal vertical axis (SVA), thoracic inlet angle (TIA), T1 slope, neck tilt (NT), cranial tilt and cervical tilt. Sagittal alignment of the cervical spine was classified into 2 types: global and regional type. Multivariate logistic regression analysis was performed to evaluate these parameters as the risk factors for ANP.Results: Patients in this study were divided into 2 groups according to ANP. There were 92 patients in ANP group and 171 patients in Non-ANP group. There was no significant difference in age (P=0.196), gender (P=0.516), TIA(P=0.139), NT (P=0.676), CK types (P=0.533), cranial tilt (P=0.332), cervical tilt (P=0.585) and cervical disc degeneration (P=0.695) between the two groups. T1 slope, C2-7 SVA in the ANP group was significantly higher than in the Non-ANP group (P < 0.05). After multivariate logistic regression analysis, C2-7 SVA (P=0.003, OR 2.318, 95% CI 1.373-4.651) and T1 slope (P=0.028, OR 2.563, 95% CI 1.186-4.669) were the two risk factors for the ANP.Conclusions: Based on this study, cervical sagittal parameters have a significant effect on the happening of axial neck pain in patients with CK. A higher T1 slope and larger C2-7 SVA are closely lead to the development of neck pain. BackgroundCervical sagittal imbalance is the one of the main reasons for decreased intervertebral disc height, further leads to the cervical degenerative disease [1, 2] . The misalignment exacerbates more distribution of the load on the intervertebral disc and posterior joints, accelerates the progression of spinal degenerative diseases during the range of motion. However, there is limited data exploring the relationship between cervical sagittal alignment and axial neck pain(ANP). JL carried out the manuscript preparation and experimental design, DZ conducted patient visits and statistical analysis of the data. JL and DZ carried out the statistical analysis of the data.YS revised the manuscript critically for important intellectual content and gave final approval of the version to be published.All authors read and approved the final version of this manuscript. Authors' information

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“…When T1 slope was less than 18.5°, it showed signi cant diagnostic value for the occurrence of degenerative cervical disease. However, most patients in their study had cervical lordosis, while those with CK were not included [17] . Jouibari et al compared cervical sagittal parameters between patients with neck pain and healthy controls.…”

Section: Discussionmentioning

confidence: 99%

“…Imbalance of the cervical spine often leads to serious degenerative disease. These studies have veri ed the relationship between CSA and activities of daily living in asymptomatic patients with or without cervical deformity [17][18][19] . It is generally acknowledged that ideal cervical balance necessitates minimal muscular energy expenditure and reduces the ANP in daily life.…”

Section: Discussionmentioning

confidence: 99%

Impact of cervical sagittal parameters on axial neck pain in patients with cervical kyphosis

Zhang

Shen

2020

Preprint

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Background: Cervical sagittal alignment (CSA) is closely related with cervical disc degeneration and impacts the spinal function, especially in the setting of cervical kyphosis (CK). In this study, we evaluated the influence of cervical sagittal parameters on the development of axial neck pain (ANP) in patients with CK.Methods: Data pertaining to 263 patients with CK who visited the outpatient department of our hospital between January 2012 and December 2018 were retrospective analyzed. The most common symptoms of ANP were neck pain, stiffness, or dullness. Visual analogue scale (VAS) was used to evaluate ANP. The following radiographic parameters were evaluated: CK types, C2-7 sagittal vertical axis (SVA), thoracic inlet angle (TIA), T1 slope, neck tilt (NT), cranial tilt, and cervical tilt. Sagittal alignment of CK was classified into 2 types: global and regional type. Multivariate logistic regression analysis was performed to identify risk factors for ANP.Results: Patients who complained of ANP were categorized as ANP group (VAS score≥3; n=92), while those without ANP were categorized as non-ANP group (VAS score<3; n=171). There was no significant between-group difference with respect to age (P=0.196), gender (P=0.516), TIA (P=0.139), NT (P=0.676), CK type (P=0.533), cranial tilt (P=0.332), cervical tilt (P=0.585), or cervical disc degeneration (P=0.695). The T1 slope and C2-7 SVA in the ANP group was significantly greater than that in the non-ANP group (P < 0.05). On multivariate logistic regression, C2-7 SVA [odds ratio (OR) 2.318, 95% confidence interval 1.373–4.651, P=0.003) and T1 slope (OR 2.563, 95% CI 1.186–4.669, P=0.028) were identified as risk factors for ANP.Conclusions: Our findings suggest a significant effect of cervical sagittal parameters on the occurrence of ANP in patients with CK. Greater T1 slope and larger C2-7 SVA may lead to the development of neck pain.

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Diagnostic Value of T1 Slope in Degenerative Cervical Spondylotic Myelopathy

Cited by 19 publications

References 31 publications

Cervical Sagittal Alignment: Literature Review and Future Directions

Cervical Sagittal Alignment: Literature Review and Future Directions

The impact of cervical sagittal parameters on axial neck pain in patients with cervical kyphosis

Impact of cervical sagittal parameters on axial neck pain in patients with cervical kyphosis

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