Effect of Cervical Kyphotic Deformity Type on the Motion Characteristics and Dynamic Spinal Cord Compression

Ruangchainikom, Monchai; Daubs, Michael D.; Suzuki, Akinobu; Hayashi, Tetsuo; Weintraub, Gil; Lee, Chris; Inoue, Hirokazu; Tian, Haijun; Aghdasi, Bayan; Scott, Trevor P.; Phan, Kevin; Chotivichit, Areesak; Wang, Jeffrey C.

doi:10.1097/brs.0000000000000330

Cited by 47 publications

(42 citation statements)

References 19 publications

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“…Forth, the standard deviation of the translation motion is large. The reason for that may attribute to the different cervical spine mobilities of different sagittal alignments of cervical spine [16]. These factors might affect the results; however, this is a pilot study, and more precise information will be achieved in long-term clinical study for comparison.…”

Section: Discussionmentioning

confidence: 99%

The evaluation of cervical spine mobility without significant spondylosis by kMRI

et al. 2015

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Section: Discussionmentioning

confidence: 99%

The evaluation of cervical spine mobility without significant spondylosis by kMRI

et al. 2015

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“…CK affects range of motion and spinal cord compression,13 with greater CK associated with increased risk of axial neck pain 29–31. Spinal cord compression occurs along the transitional and apical zones of CK13 during extension and flexion.…”

Section: Discussionmentioning

confidence: 99%

“…For sigmoid type, at least one upper cervical centroid is anterior to and at least one lower cervical centroid is posterior to the C2–C7 centroid line, and the distance from the C2–C7 centroid line to at least one centroid is ≥2 mm (Figure 3). 13…”

Section: Methodsmentioning

confidence: 99%

“…The kappa statistic was used to evaluate the interobserver and intraobserver reliabilities of Modic changes based on MRI findings. Cohen’s kappa coefficients13,14 were used to determine the reliability of Modic changes in this study: 0.81–1.0, excellent; 0.61–0.80, substantial; 0.41–0.60, moderate; 0.21–0.40, fair; 0.0–0.20, slight; <0.0, poor.…”

Section: Methodsmentioning

confidence: 99%

“…It is also an important risk factor for accelerating intervertebral disc degeneration 13. Patients with CK are more likely to develop neck pain and neurologic deficits 11–13. It is thought that cervical Modic changes are related to axial neck pain in patients with CK.…”

Section: Introductionmentioning

confidence: 99%

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Characteristics of Modic changes in cervical kyphosis and their association with axial neck pain

et al. 2017

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BackgroundThe purpose of this study was to evaluate characteristics of Modic changes in cervical kyphosis (CK) and their association with axial neck pain.MethodsStudy participants included 286 asymptomatic or symptomatic patients with CK (mean age = 54.2 ± 12.2 years) who were consecutively enrolled from March 2009 to October 2015. Clinical and radiographic evaluations were performed at a university outpatient department. CK was classified as global type, reverse sigmoid type, or sigmoid type.ResultsThere were 138 participants with global type CK, 103 with reverse sigmoid type CK, and 45 with sigmoid type CK. Of the 286 participants, 102 had Modic changes (Modic-1 in 38 segments and Modic-2 in 75 segments). Spinal cord compression grade and disc degeneration occurred more frequently in the group with axial neck pain compared to the group without pain. Angular motion was decreased in those with axial neck pain (mean ± standard deviation [SD] 7.8°±4.6°) compared to those who were asymptomatic (mean ± SD 8.9°±5.1°; P<0.001). In multivariate logistic regression analysis, Modic changes were associated with axial neck pain (odds ratio =5.356; 95% confidence interval =1.314–12.800; P<0.001).ConclusionModic changes occur most commonly in association with CK global type and less commonly with reverse sigmoid type and sigmoid type. Modic changes are associated with axial neck pain in patients with CK.

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Best practices in peri‐operative management of patients with skeletal dysplasias

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et al. 2017

American J of Med Genetics Pt A

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Patients with skeletal dysplasia frequently require surgery. This patient population has an increased risk for peri-operative complications related to the anatomy of their upper airway, abnormalities of tracheal-bronchial morphology and function; deformity of their chest wall; abnormal mobility of their upper cervical spine; and associated issues with general health and body habitus. Utilizing evidence analysis and expert opinion, this study aims to describe best practices regarding the peri-operative management of patients with skeletal dysplasia. A panel of 13 multidisciplinary international experts participated in a Delphi process that included a thorough literature review; a list of 22 possible care recommendations; two rounds of anonymous voting; and a face to face meeting. Those recommendations with more than 80% agreement were considered as consensual. Consensus was reached to support 19 recommendations for best pre-operative management of patients with skeletal dysplasia. These recommendations include pre-operative pulmonary, polysomnography; cardiac, and neurological evaluations; imaging of the cervical spine; and anesthetic management of patients with a difficult airway for intubation and extubation. The goals of this consensus based best practice guideline are to provide a minimum of standardized care, reduce perioperative complications, and improve clinical outcomes for patients with skeletal dysplasia.

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Effect of Cervical Kyphotic Deformity Type on the Motion Characteristics and Dynamic Spinal Cord Compression

Cited by 47 publications

References 19 publications

The evaluation of cervical spine mobility without significant spondylosis by kMRI

The evaluation of cervical spine mobility without significant spondylosis by kMRI

Characteristics of Modic changes in cervical kyphosis and their association with axial neck pain

Best practices in peri‐operative management of patients with skeletal dysplasias

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