Evidence map›Paper›PMID 29497178›Full record

ArticleSpinal cord2018

In cervical spondylotic myelopathy spinal cord motion is focally increased at the level of stenosis: a controlled cross-sectional study.

Katharina Wolf, Markus Hupp, Susanne Friedl, Reto Sutter, Markus Klarhöfer, Patrick Grabher, Patrick Freund, Armin Curt

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Spinal cord, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.1field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 27 citations in OpenAlex.

  1. Trial
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  7. Comparison of axial and sagittal spinal cord motion measurements in degenerative cervical myelopathy.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2022
    Article
  8. Article
  9. Article
  10. The Restless Spinal Cord in Degenerative Cervical Myelopathy.AJNR. American journal of neuroradiology · 2021
    Article
  11. Article
  12. Article
  13. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 3 countries.

Katharina WolfSpinal Cord Injury Center, Balgrist University Hospital, Zürich, Switzerland. katharina.wolf@uniklinik-freiburg.de.ORCID http://orcid.org/0000-0003-1468-3634
Markus HuppSpinal Cord Injury Center, Balgrist University Hospital, Zürich, Switzerland.
Susanne FriedlSpinal Cord Injury Center, Balgrist University Hospital, Zürich, Switzerland.
Reto SutterDepartment of Radiology, Balgrist University Hospital, Zürich, Switzerland.
Markus KlarhöferSiemens Healthcare AG, Zürich, Switzerland.
Patrick GrabherSpinal Cord Injury Center, Balgrist University Hospital, Zürich, Switzerland.
Patrick FreundSpinal Cord Injury Center, Balgrist University Hospital, Zürich, Switzerland.
Armin CurtSpinal Cord Injury Center, Balgrist University Hospital, Zürich, Switzerland.
Universitätsklinik Balgrist · CHSiemens (Switzerland) · CHUniversity Medical Center Freiburg · DEWellcome Trust Centre for the History of Medicine · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designLevel-, age-, and gender-matched controlled cross-sectional cohort study.

objectivesTo investigate alterations of spinal cord (SC) motion within cervical spondylotic myelopathy (CSM) across the cervical spinal segments and its relation to cerebrospinal fluid (CSF)-flow, anatomic conditions, and clinical parameters.

settingUniversity Hospital Balgrist, Zurich, Switzerland.

methodsOverall, 12 patients suffering from CSM at level C5 and 12 controls underwent cardiac-gated 2D phase-contrast-MRI at level C2 and C5 and standard MRI sequences. Parameters of interest: Velocity measurements of SC and CSF (area under the curve = total displacement (normalization for duration of the heart cycle), total displacement ratio (C5/C2; intraindividual normalization for confounders)), spinal canal diameters, clinical motor- and sensory scores, and performance measures.

resultsInterrater reliability was excellent for SC motion at both levels and for CSF flow at C2, but not reliable for CSF flow at C5. Within controls, SC motion at C2 positively correlated with SC motion at C5 (p = 0.000); this correlation diminished in patients (p = 0.860). SC total displacement ratio was significantly increased in patients (p = 0.029) and correlated with clinical impairment (p = 0.017). Morphometric measures of the extent of stenosis were not related to SC motion or clinical symptoms.

conclusionThe findings revealed physiological interactions of CSF flow and SC motion across the cervical spine in healthy controls while being diminished in CSM patients. Findings of focally increased SC motion at the level of stenosis were related to clinical impairment and might be promising as a diagnostic and prognostic marker in CSM. SPONSORSHIP: CRPP Neurorehab of the University of Zurich, Switzerland.

Indexed as

Age FactorsCerebrospinal FluidCervical CordCervical VertebraeConstriction, PathologicCross-Sectional StudiesFemaleHumansLinear ModelsMagnetic Resonance ImagingMaleMiddle AgedMotionProspective StudiesSex FactorsSpondylosis

Identifiers

PMID29497178
OpenAlexW2790844194

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.