Evidence map›Paper›PMID 31606049›Full record

ArticleJournal of orthopaedic surgery and research2019

Assessment of spinal cord motion as a new diagnostic MRI-parameter in cervical spinal canal stenosis: study protocol on a prospective longitudinal trial.

Katharina Wolf, Axel J Krafft, Karl Egger, Jan-Helge Klingler, Ulrich Hubbe, Marco Reisert, Marc Hohenhaus

Abstract readClinical Trial Protocol
In one paragraph

Article in Journal of orthopaedic surgery and research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

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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

7 authors.

Katharina WolfDepartment of Neurology and Neurophysiology, Faculty of Medicine, University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany. katharina.wolf@uniklinik-freiburg.de.ORCID http://orcid.org/0000-0003-1468-3634
Axel J KrafftDepartment of Radiology, Medical Physics, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Karl EggerDepartment of Neuroradiology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Jan-Helge KlinglerDepartment of Neurosurgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Ulrich HubbeDepartment of Neurosurgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Marco ReisertDepartment of Radiology, Medical Physics, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Marc HohenhausDepartment of Neurosurgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Funding

Albert-Ludwigs-Universität Freiburg funding programme Open Access PublishingDeutsche Wirbelsäulenstiftung (DE) 1/2017
6 · The paper itself

Abstract

backgroundIncreased spinal cord motion has been proven to be a relevant finding within spinal canal stenosis disclosed by phase-contrast MRI (PC-MRI). Adapted PC-MRI is a suitable and reliable method within the well deliberated setting. As the decision between conservative and operative treatment can be challenging in some cases, further diagnostic marker would facilitate the diagnostic process. We hypothesize that increased spinal cord motion will correlate to clinical course and functional impairment and will contribute as a new diagnostic marker.

methodsA monocentric, prospective longitudinal observational trial on cervical spinal canal stenosis will be conducted at the University Medical Center Freiburg. Patients (n = 130) with relevant cervical spinal canal stenosis, being defined by at least contact to the spinal cord, will be included. Also, we will examine a control group of healthy volunteers (n = 20) as proof-of-principle. We will observe two openly assigned branches of participants undergoing conservative and surgical decompressive treatment (based on current German Guidelines) over a time course of 12 month, including a total of 4 visits. We will conduct a broad assessment of clinical parameters, standard scores and gradings, electrophysiological measurements, standard MRI, and adapted functional PC-MRI of spinal cord motion. Primary endpoint is the evaluation of an expected negative correlation of absolute spinal cord displacement to clinical impairment. Secondary endpoints are the evaluation of positive correlation of increased absolute spinal cord displacement to prolonged evoked potentials, prediction of clinical course by absolute spinal cord displacement, and demonstration of normalized spinal cord motion after decompressive surgery. DISCUSSION: With the use of adapted, non-invasive PC-MRI as a quantitative method for assessment of spinal cord motion, further objective diagnostic information can be gained, that might improve the therapeutic decision-making process. This study will offer the needed data in order to establish PC-MRI on spinal cord motion within the diagnostic work-up of patients suffering from spinal canal stenosis.

trial registrationGerman Clinical Trials Register, ID: DRKS00012962 , Register date 2018/01/17.

Indexed as

Cervical VertebraeEpidemiologic StudiesHumansMagnetic Resonance ImagingObservational Studies as TopicSpinal StenosisCSF-flowDegenerative cervical myelopathy (DCM)Phase-contrast MRISpinal canal stenosisSpinal cordSpinal cord compressionSpinal cord motion

Identifiers

PMID31606049
PMCPMC6790032

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Registered trials

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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.