Evidence map›Paper›PMID 35577337›Full record

ArticleNeurospine2022

Prevalence and Clinical Impact of Cervical Facet Joint Degeneration on Degenerative Cervical Myelopathy: A Novel Computed Tomography Classification Study.

Ai Okamoto, Yasuhiro Takeshima, Shohei Yokoyama, Fumihiko Nishimura, Ichiro Nakagawa, Young-Soo Park, Hiroyuki Nakase

Open access · diamondAbstract read
In one paragraph

Article in Neurospine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

12 citing papers in PubMed, 23 citations in OpenAlex.

  1. Prevalence and distribution of cervical facet joint degeneration in patients with cervical spondylotic myelopathy without/with instability and ossification of the posterior longitudinal ligament-a comparative study.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 · 2025
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  3. Preoperative three-dimensional simulation and clinical evaluation ofQuantitative imaging in medicine and surgery · 2025
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  4. Exploration of the correlation between facet joints cross-sectional area asymmetry and cervical disc herniation.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 · 2024
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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 at 1 institution in 1 country.

Ai OkamotoDepartment of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan.
Yasuhiro TakeshimaDepartment of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan.
Shohei YokoyamaDepartment of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan.
Fumihiko NishimuraDepartment of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan.
Ichiro NakagawaDepartment of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan.
Young-Soo ParkDepartment of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan.
Hiroyuki NakaseDepartment of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan.
Nara Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate cervical facet joint degeneration using a newly developed classification, investigate its prevalence and relationship with cervical degenerative spondylolisthesis, and clarify its clinical significance in patients with degenerative cervical myelopathy (DCM).

methodsThis study included 145 consecutive patients with DCM who underwent surgical treatment. Clinical variables and radiological findings were analyzed. A new 6-grade computed tomography (CT) classification for cervical facet joint degeneration was adapted, and its prevalence was evaluated by categorizing the joints into those at responsible and those at nonresponsible spinal segmental levels. We evaluated the association between rapidly progressive myelopathy and the presence of significant facet joint degeneration or spondylolisthesis at the responsible segmental level.

resultsFinally, 140 patients with a mean age of 64.1 ± 12.8 years were analyzed. The prevalence of grade 1, 2, 3, 4, 5A, and 5B classification in all facet joints was 72.0%, 9.5%, 10.9%, 4.3%, 2.9%, and 0.4%, respectively. There was a statistically significant difference in the distribution of CT grades between the joints at the responsible and nonresponsible segmental levels (p < 0.001), with a high prevalence of grade 4 or 5B degeneration at the responsible segmental level, reflecting articular irregularity. There was also a statistically significant relationship between rapidly progressive myelopathy and grade 4 or 5B degeneration at the responsible segmental level (p < 0.001), but not between rapidly progressive myelopathy and spondylolisthesis (p = 0.255).

conclusionThis novel CT classification for facet joints deserves additional evaluation in patients with DCM. Abnormal findings on the articular surfaces might be related to the progression of myelopathy.

Indexed as

ArticularCervical myelopathyComputed tomographyDegenerativeFacet jointSpondylolisthesis

Identifiers

PMID35577337
PMCPMC9260546
OpenAlexW4280611257

What OpenQuestion holds

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LicenceCC BY-NC
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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.