Prevalence and Motion Characteristics of Degenerative Cervical Spondylolisthesis in the Symptomatic Adult

Suzuki, Akinobu; Daubs, Michael D.; Inoue, Hirokazu; Hayashi, Tetsuo; Aghdasi, Bayan; Montgomery, Scott R.; Ruangchainikom, Monchai; Hu, Xueyu; Lee, Chris; Wang, Christopher J.; Wang, Benjamin J.; Nakamura, Hiroaki

doi:10.1097/brs.0b013e31829b1487

Cited by 64 publications

(57 citation statements)

References 16 publications

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“…Spondylolisthesis was categorized into 2 groups: less than 2.0 mm and 2.0 mm or greater. 8 Age, disc bulge, angular motion, and translational motion were classifi ed into 3 groups on the basis of tertiles, because no defi nitive cutoff points were found in previous articles (age: < 49, 49-55, and ≥ 55 yr; ≤ 1.8, 1.9-2.4, and > 2.4 mm; ≤ 4.8 ° , 4.9-9.3 ° , and > 9.3 ° ; and ≤ 0.3, 0.4-1.1, > 1.1 mm, respectively). Disc degeneration grade was categorized into mild (grades 1-3), moderate (grade 4), and severe (grade 5).…”

Section: Discussionmentioning

confidence: 97%

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Risk Factors for Missed Dynamic Canal Stenosis in the Cervical Spine

Hayashi

Wang

Suzuki³

et al. 2014

Spine

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Section: Discussionmentioning

confidence: 97%

“…Consequently, the measurement methods were considered to be reliable. 8 Because the presence of the compression of the cord on MRI is clinically most important, we classifi ed the segments with grades 0-2 as SCC ( − ) and the segments with grade 3 as SCC ( + ).…”

Section: Evaluation Of Sccmentioning

confidence: 99%

Risk Factors for Missed Dynamic Canal Stenosis in the Cervical Spine

Hayashi

Wang

Suzuki³

et al. 2014

Spine

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“…Spondylolisthesis of the cervical spine is relatively common 111 and occurs as a result of instability arising from facet and IVD joint degeneration and from hypermobility syndromes such as Ehlers-Danlos syndrome. 77 Given the static nature of conventional MRI, movement-dependent spondylolisthesis can be missed; therefore, when it is suspected, flexion and extension radiographs should be evaluated.…”

Section: Spondylolisthesismentioning

confidence: 99%

Magnetic resonance imaging assessment of degenerative cervical myelopathy: a review of structural changes and measurement techniques

Nouri

Martín

Mikulis

et al. 2016

FOC

150

119

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Degenerative cervical myelopathy encompasses a spectrum of age-related structural changes of the cervical spine that result in static and dynamic injury to the spinal cord and collectively represent the most common cause of myelopathy in adults. Although cervical myelopathy is determined clinically, the diagnosis requires confirmation via imaging, and MRI is the preferred modality. Because of the heterogeneity of the condition and evolution of MRI technology, multiple techniques have been developed over the years in an attempt to quantify the degree of baseline severity and potential for neurological recovery. In this review, these techniques are categorized anatomically into those that focus on bone, ligaments, discs, and the spinal cord. In addition, measurements for the cervical spine canal size and sagittal alignment are also described briefly. These tools have resulted collectively in the identification of numerous useful parameters. However, the development of multiple techniques for assessing the same feature, such as cord compression, has also resulted in a number of challenges, including introducing ambiguity in terms of which methods to use and hindering effective comparisons of analysis in the literature. In addition, newer techniques that use advanced MRI are emerging and providing exciting new tools for assessing the spinal cord in patients with degenerative cervical myelopathy.

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“…Our usage of CT images might have allowed us to detect spondylolisthesis at C7/T1 in a way that was not possible for studies reported in previous papers. There was only one study which used magnetic resonance imaging (MRI) for detecting the slippage, and the researchers stated that anterior spondylolisthesis at C7 was a relatively common lesion 14) . CT imaging or MRI is considered to be necessary to detect the slippage at C7/T1 in many cases.…”

Section: Discussionmentioning

confidence: 99%

Characteristic findings on imaging of cervical spondylolisthesis: Analysis of computed tomography and X-ray photography in 101 spondylolisthesis patients

Aoyama

Shiraishi²,

Kato

et al. 2018

Spine Surg Relat Res

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Abstract:Introduction: The characteristics of cervical spondylolisthesis are not currently fully understood, because of the shortage of reports covering the large population of patients with cervical spondylolisthesis. The purpose of this study was to elucidate the characteristics of cervical spondylolisthesis by examining a relatively large number of cases.Methods: We analyzed 101 cases with more than 2 mm of vertebral listhesis as determined from X-ray or computed tomography (CT) images among 731 patients who underwent surgery at a single institute. We considered the C2-7 angle, range of motion, and C2-7 sagittal vertical axis on lateral X-ray images. From sagittal CT images, classifications into five grades based on the slipped disc and adjacent caudal levels were made. We examined the orientation of facet joints at the slipped level using axial CT images.Results: Spondylolisthesis was recognized in 101 cases at 124 levels. Anterior and posterior spondylolisthesis were detected in 68 and 40 cases, respectively. Anterior spondylolisthesis developed predominantly at C3 or C4, usually at the level adjacent to the narrowed disc, or at C7, adjacent to the stiffened thoracic spine. The disc height was relatively preserved at the anterior slipped level. Posterior spondylolisthesis developed predominantly at the level of the significantly narrowed disc associated with advanced intervertebral osteoarthritis. At the segment with listhesis in the lower cervical spine, the direction of the facet joint in the axial plane tended to be posteromedial.Conclusions: Cervical degenerative spondylolisthesis was classified into two types. The first and more common listhesis occurred adjacent to stiffened levels, and anterior slippage was common in this type. The second and less common listhesis occurred within progressively degenerated segments, and posterior slippage was prominent. We have uniquely described the morphological changes in orientation of the cervical facet joints at the slipped level in the transverse plane.

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Prevalence and Motion Characteristics of Degenerative Cervical Spondylolisthesis in the Symptomatic Adult

Abstract: N/A.

Cited by 64 publications

References 16 publications

Risk Factors for Missed Dynamic Canal Stenosis in the Cervical Spine

Risk Factors for Missed Dynamic Canal Stenosis in the Cervical Spine

Magnetic resonance imaging assessment of degenerative cervical myelopathy: a review of structural changes and measurement techniques

Characteristic findings on imaging of cervical spondylolisthesis: Analysis of computed tomography and X-ray photography in 101 spondylolisthesis patients

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