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The ratio of cervical lordosis to C7 slope represents the reciprocal change between cervical sagittal alignment and global spinal alignment
PurposeThis retrospective cross-sectional study investigated variations in the ratio of cervical lordosis to C7 slope (CL/C7S) at different stages of...
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Axial superior facet slope may determine anterior or posterior atlantoaxial displacement secondary to os odontoideum and compensatory mechanisms of the atlantooccipital joint and subaxial cervical spine
ObjectiveTo introduce novel parameters in determining directions of os odontoideum (OO) with atlantoaxial displacement (AAD) and compensations of...
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Usefulness of the preoperative thoracic inlet angle in comparison to the T1 slope for predicting cervical kyphosis after laminoplasty
PurposeThoracic inlet angle (TIA) is a sagittal radiographic parameter with a constant value regardless of posture and is significantly correlated...
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Does T1 slope minus cervical lordosis mismatch affect surgical outcomes of cervical laminoplasty in the absence of preoperative severe kyphosis?
BackgroundThe impact of the T1 slope minus cervical lordosis (T1S-CL) on surgical outcomes in patients with degenerative cervical myelopathy...
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Factors related to T1 slope: spinopelvic balance and thoracic compensation
ObjectiveTo identify factors associated with T1 slope (T1S).
MethodsA total of 215 patients over 18 years old who underwent whole-spine X-rays to...
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The impact of age, sex, disc height loss and T1 slope on the upper and lower cervical lordosis: a large-scale radiologic study
PurposeTo clarify the relative influence of age, sex, disc height loss and T1 slope on upper (Occiput-C2) and lower cervical lordosis (C2–C7).
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Relationship between C2 slope with sagittal parameters and clinical function of degenerative cervical kyphosis
PurposeTo explore the relationship between C2 slope with sagittal parameters and clinical function of degenerative cervical kyphosis (DCK).
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Sagittal alignment of the cervical spine: radiographic analysis of 111 asymptomatic adolescents, a retrospective observational study
PurposeTo describe the cervical spine morphology and explore its relationship to global sagittal alignment parameters in the asymptomatic adolescent...
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Compensatory classification in spine sagittal malalignment with lumbar degeneration
ObjectiveTo generate a compensatory classification to evaluate sagittal spinal malalignment with lumbar degeneration.
MethodsWe included 162...
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Comparison of radiological and clinical outcomes of cervical laminoplasty versus lateral mass screw fixation in patients with ossification of the posterior longitudinal ligament
PurposeThis study aimed to compare cervical sagittal parameters and clinical outcomes between patients undergoing cervical laminoplasty(CL) and those...
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Variation of cervical sagittal alignment parameters according to age and pelvic incidence in degenerative spinal deformity patients
IntroductionIn asymptomatic subjects, variations of cervical sagittal alignment parameters according to age and spinopelvic organization have been...
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Impact of cervical and global spine sagittal alignment on cervical curvature changes after posterior cervical laminoplasty
ObjectiveTo analyze the correlation between the changes in cervical curvature and the sagittal parameters of spino-pelvic and clinical efficacy after...
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Comparison of anterior cervical diskectomy with fusion (ACDF) and laminoplasty treating multilevel cervical spondylotic myelopathy with developmental canal stenosis: a retrospective study
PurposeTo evaluate clinical effectiveness and radiologic results of anterior cervical diskectomy with fusion (ACDF) comparing with laminoplasty (LP)...
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Risk factors of instrumentation failure after laminectomy and posterior cervical fusions (PCF)
BackgroundFor patients with multilevel degenerative cervical myelopathy, laminectomy and posterior cervical fusions (PCF) with instrumentation are...
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Normal spinopelvic parameters and correlation analysis in 217 asymptomatic children
BackgroundUnderstanding spinal sagittal balance is crucial for assessing and treating spinal deformities in pediatric populations.
Objective ...
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Relationship between the atlantodental interval and T1 slope after atlantoaxial fusion in patients with rheumatoid arthritis
BackgroundAtlantoaxial fusion has been widely used for the treatment of atlantoaxial instability (AAI). However, atlantoaxial fusion sacrifices the...
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Variation of cervical sagittal alignment parameters according to gender, pelvic incidence and age
PurposeThe aim was to describe radiographic cervical sagittal alignment variations according to age, gender and pelvic incidence (PI) and to...
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Total knee arthroplasty in patients with lumbar spinal fusion leads to significant changes in pelvic tilt and sacral slope
BackgroundThe knee–hip–spine syndrome has been well elucidated in the literature in recent years. The aim of this study was to evaluate the effect of...
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C7 sacral tilt (C7ST): a novel spinopelvic parameter reveals the relationship between pelvic parameters and global spinal sagittal balance and converts pelvic parameters into spinal parameters
PurposeThe aim is to propose a novel spinopelvic parameter C7 sacral tilt (C7ST), of which its sum with global tilt (GT) is equal to pelvic incidence...
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Effect of facet joint distraction on the functional and radiological outcomes after anterior cervical disc replacement
ObjectiveThe purpose of this study is to explore: 1) whether the extent of facet joint distraction affects functional outcomes following single-level...
