Impact of cervical sagittal parameters and spinal cord morphology in cervical spondylotic myelopathy status post spinous process-splitting laminoplasty

Chen, Hsuan‐Yu; Yang, Mei; Lin, Yung‐Sen; Lin, Feng‐Huei; Chen, Po-Quang; Hu, Ming-Hsiao; Yang, Sen

doi:10.1007/s00586-019-06247-z

Cited by 19 publications

(29 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They reported that the balanced group (T1s <30° and SVA <20 mm) had good improvements in the ODI, but the unbalanced group (T1s ≥30° and SVA ≥20 mm) had poor ODI improvements. Furthermore, various cut-off values of SVA (28.9, 30, 35, and 50 mm) and T1s-CL (20°) have been reported to be related to clinical results [ 7 , 23 , 51 , 57 ].…”

Section: Resultsmentioning

confidence: 99%

Preoperative Radiological Parameters to Predict Clinical and Radiological Outcomes after Laminoplasty

Lee

Son

Shin

et al. 2021

J Korean Neurosurg Soc

View full text Add to dashboard Cite

Many studies have focused on pre-operative sagittal alignment parameters which could predict poor clinical or radiological outcomes after laminoplasty. However, the influx of too many new factors causes confusion. This study reviewed sagittal alignment parameters, predictive of clinical or radiological outcomes, in the literature. Preoperative kyphotic alignment was initially proposed as a predictor of clinical outcomes. The clinical significance of the K-line and K-line variants also has been studied. Sagittal vertical axis, T1 slope (T1s), T1s-cervical lordosis (CL), anterolisthesis, local kyphosis, the longitudinal distance index, and range of motion were proposed to have relationships with clinical outcomes. The relationship between loss of cervical lordosis (LCL) and T1s has been widely studied, but controversy remains. Extension function, the ratio of CL to T1s (CL/T1s), and Sharma classification were recently proposed as LCL predictors. In predicting postoperative kyphosis, T1s cannot predict postoperative kyphosis, but a low CL/ T1s ratio was associated with postoperative kyphosis.

show abstract

Section: Resultsmentioning

confidence: 99%

Preoperative Radiological Parameters to Predict Clinical and Radiological Outcomes after Laminoplasty

Lee

Son

Shin

et al. 2021

J Korean Neurosurg Soc

View full text Add to dashboard Cite

show abstract

“…Lastly, several studies have described a relationship between cervical spine alignment and cervical spine surgery outcomes [25][26][27][28]. Hyun et al reported that a greater T1S minus CL mismatch was associated with worse neck disability index scores after posterior cervical fusion surgery [25,26], while Jeon et al found that postoperative T1S minus CL and changes in T1S and T1S minus CL were significantly correlated with changes in neck disability index scores [27].…”

Section: Discussionmentioning

confidence: 99%

“…Hyun et al reported that a greater T1S minus CL mismatch was associated with worse neck disability index scores after posterior cervical fusion surgery [25,26], while Jeon et al found that postoperative T1S minus CL and changes in T1S and T1S minus CL were significantly correlated with changes in neck disability index scores [27]. Chen et al reported significant associations for C2-7 SVA and T1S minus CL with postoperative neck pain in cervical spinous process-splitting laminoplasty [28]. In our study, we observed no remarkable correlations between any cervical sagittal spinal alignment parameter and JOA score recovery rate.…”

Section: Discussionmentioning

confidence: 99%

Comparison of fusion versus non-fusion surgery for retro-odontoid pseudotumor with atlanto-axial subluxation

Uehara

Ikegami

Kuraishi

et al. 2021

North American Spine Society Journal (NASSJ)

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

“… Lumbar lordosis (LL): the angle between the cranial L1 endplate and the cranial sacral endplate [ 9 ]. Sagittal vertical axis (SVA): the shortest distance between the posterosuperior corner of S1 and the C7 plumb line, which is the vertical line through the center of the C7 vertebral body [ 21 ]. (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Sagittal vertical axis (SVA): the shortest distance between the posterosuperior corner of S1 and the C7 plumb line, which is the vertical line through the center of the C7 vertebral body [ 21 ]. (Fig.…”

Section: Methodsmentioning

confidence: 99%

Assessment of sagittal spinopelvic parameters in a Taiwanese population with spondylolysis by the EOS imaging system: a retrospective radiological analysis

Chuang

Tseng

Chen

et al. 2021

BMC Musculoskelet Disord

View full text Add to dashboard Cite

Background The impact of sagittal spinopelvic alignment on spondylolysis is well established in Caucasian populations. However, prior studies suggest that people from different ethnological backgrounds showed divergence, and a few studies that focused on Asian populations reported conflicting results. The aim of this study is to use the EOS imaging system to evaluate the spinopelvic parameters of spondylolysis patients, and their relationship with spondylolisthesis, disc degeneration, and age in a Taiwanese population. Methods Radiographic sagittal spinopelvic parameters for 45 spondylolysis patients and 32 healthy people were evaluated, including pelvic incidence (PI), sacral slope (SS), pelvic tilt (PT), thoracic kyphosis (TK), and lumbar lordosis (LL). The spinopelvic parameters were compared between spondylolytic and control groups. These parameters were further compared between spondylolytic subjects with and without spondylolisthesis, with and without high-grade disc degeneration, and young (< 30 years old) and middle-aged. Results The PI and LL of the spondylolytic group (52.6°±12.0° and 41.3°±15.2°) were significantly higher than those of the healthy control group (47.16°±7.95° and 28.22°±10.65°). Further analysis of the spondylolytic patients revealed that those with high-grade disc degeneration were more prone to spondylolisthesis (92.3 %) compared to those without (50 %; p = 0.001). The middle-aged group had significantly higher rates of spondylolisthesis (80 %) and high-grade disc degeneration (52.4 %) compared with those for the young group (45 and 16.7 %, respectively; p = 0.017 and 0.047, respectively). No statistically significant difference in the sagittal spinopelvic parameters was found when spondylolytic patients were divided according to the occurrence of spondylolisthesis or high-grade disc degeneration. Conclusions In a Taiwanese population, PI and LL were significantly larger in spondylolytic patients. Disc degeneration and age were associated with the occurrence of spondylolisthesis. Ethnological differences should thus be taken into account when making clinical decisions regarding spondylolysis in a Taiwanese population.

show abstract

Impact of cervical sagittal parameters and spinal cord morphology in cervical spondylotic myelopathy status post spinous process-splitting laminoplasty

Cited by 19 publications

References 20 publications

Preoperative Radiological Parameters to Predict Clinical and Radiological Outcomes after Laminoplasty

Preoperative Radiological Parameters to Predict Clinical and Radiological Outcomes after Laminoplasty

Comparison of fusion versus non-fusion surgery for retro-odontoid pseudotumor with atlanto-axial subluxation

Assessment of sagittal spinopelvic parameters in a Taiwanese population with spondylolysis by the EOS imaging system: a retrospective radiological analysis

Contact Info

Product

Resources

About