Evidence map›Paper›PMID 33591439›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2021

Influence of dynamic neck motion on the clinical usefulness of multi-positional MRI in cervical degenerative spondylosis.

Jong Beom Lee, Jong- Hyeok Park, Jung Jae Lee, Ho Jin Lee, Il Sup Kim, Jung-Woo Hur, Jae Taek Hong

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Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

5 citing papers in PubMed, 11 citations in OpenAlex.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Jong Beom LeeDepartment of Neurosurgery, Chungbuk National University of Korea, Cheongju, Korea.
Jong- Hyeok ParkDepartment of Neurosurgery, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea.
Jung Jae LeeDepartment of Neurosurgery, Gangneung Asan Hospital, The Ulsan University, Gangneung, Korea.
Ho Jin LeeDepartment of Neurosurgery, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Korea.
Il Sup KimDepartment of Neurosurgery, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Korea.
Jung-Woo HurDepartment of Neurosurgery, Eunpyung St. Mary's Hospital, The Catholic University of Korea, Tongil-ro, Eunpyeng-Gu, Seoul, 102103312, Korea.
Jae Taek HongDepartment of Neurosurgery, Eunpyung St. Mary's Hospital, The Catholic University of Korea, Tongil-ro, Eunpyeng-Gu, Seoul, 102103312, Korea. jatagi15@gmail.com.
Gangneung Asan Hospital · KRThe Catholic University of Korea St. Vincent's Hospital · KRThe Catholic University of Korea Incheon St. Mary's Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to find out additional indications for multi-positional MRI in cervical degenerative spondylosis (CDS) patients. MATERIAL AND

methodsA total of 63 patients with cervical spondylotic myelopathy that underwent multi-positional MRI and X-ray were included. Muhle's grade, C2-7 angle, and C7 slope were measured. Patients were assigned to the stenosis group (Group S) when Muhle's grades were increased by more than two or maximum grade was reached. Other patients were assigned to the maintenance group (Group M). Receiver operating characteristic (ROC) analysis was performed. Statistical significance was accepted for p values of < 0.05.

resultsA total of 24 patients were assigned to the S group and 39 patients to the M group. Mean C2-7 angle difference in extension (eC27A) between S and M groups was 10.97° (p = 0.002). The mean inter-group difference between C2-7 angle in extension and neutral positions (e-nC27A) was 14.39° (p = 0.000). Mean C7 slope difference in neutral position was  - 6.53° (p = 0.002). Based on areas under ROC curves (AUCs), e-nC27A, eC27A, and negative C7 slope had AUCs of 0.934 (95% CI 0.876-0.992), 0.752 (95% CI 0.624-0.880), and 0.720 (95% CI 0.588-0.851), respectively. The optimal cutoff value of e-nC27A was 15.4 degrees, which had a diagnostic accuracy of 88.9%.

conclusionMulti-positional MRI helps to find dynamic cord compressive lesion in CDS patients. The higher eC27A, e-nC27A values and smaller C7 slope were found to increase the likelihood of cervical dynamic stenosis. Among other factors, we recommend multi-positional MRI before surgery especially when a patient's e-nC27A is > 15.4 degrees. LEVEL OF EVIDENCE I: Diagnostic: individual cross-sectional studies with the consistently applied reference standard and blinding.

Indexed as

Spinal Cord DiseasesSpondylosisCervical VertebraeCross-Sectional StudiesHumansMagnetic Resonance ImagingRetrospective StudiesCervical spineDegenerative spondylosisDynamic neck motionMulti-positional MRI

Identifiers

PMID33591439
OpenAlexW3133031976

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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.