Evidence map›Paper›PMID 28247081›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 Society2017

Extraordinary positional cervical spinal cord compression in extension position as a rare cause of postoperative progressive myelopathy after cervical posterior laminoplasty detected using the extension/flexion positional CT myelography: one case after laminectomy following failure of a single-door laminoplasty/one case after double-door laminoplasty without interlaminar spacers.

Yasushi Fujiwara, Hideki Manabe, Takahiro Harada, Bunichiro Izumi, Nobuo Adachi

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In one paragraph

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, 2017. 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
0.7field-weighted citation impact, top 28% 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, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Percutaneous ultrasonographic evaluation of the spinal cord after cervical laminoplasty: time-dependent changes.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 · 2018
    Article
  5. Symptomatic cord compression by paraspinal musculature following cervical laminectomy: rare complication.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 · 2018
    Article
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

5 authors at 2 institutions in 1 country.

Yasushi FujiwaraDepartment of Orthopaedic Surgery, Hiroshima City Asa Citizens Hospital, Kabe-minami 2-1-1, Asakita-ku, Hiroshima, 731-0293, Japan. ys.fujiwara@nifty.com.ORCID 0000-0003-4124-3802
Hideki ManabeDepartment of Orthopaedic Surgery, Hiroshima City Asa Citizens Hospital, Kabe-minami 2-1-1, Asakita-ku, Hiroshima, 731-0293, Japan.
Takahiro HaradaDepartment of Orthopaedic Surgery, Hiroshima City Asa Citizens Hospital, Kabe-minami 2-1-1, Asakita-ku, Hiroshima, 731-0293, Japan.
Bunichiro IzumiDepartment of Orthopaedic Surgery, Hiroshima City Asa Citizens Hospital, Kabe-minami 2-1-1, Asakita-ku, Hiroshima, 731-0293, Japan.
Nobuo AdachiDepartment of Orthopaedic Surgery, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan.
Hiroshima City Asa Citizens Hospital · JPHiroshima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePosterior cervical laminectomies and laminoplasties are common treatments for cervical spondylotic myelopathy. However, recent studies demonstrated that positional spinal cord compression occurred after cervical laminectomies and caused postoperative progressive myelopathy. Although there were no such reports after laminoplasties, we report two cases in which symptomatic extraordinary positional spinal cord compression occurred after laminoplasties in this paper.

methodsThis study included two patients who showed progressive myelopathy: one case after a laminectomy following failure of a single-door laminoplasty and one case after a double-door laminoplasty without interlaminar spacers.

resultsThe MRIs showed mild cord compression in the neutral position in both cases. However, the patients could not extend their necks, because it triggered severe neck pain and numbness. Therefore, the positional CT myelography (CTM) was taken in the flexion and extension positions, and it showed severe spinal cord compression only in the extension position. Posterior instrumented fusions were performed for both patients, which improved their symptoms.

conclusionsThis paper demonstrates that postoperative positional spinal cord compression during neck extension caused a progressive myelopathy even after laminoplasty. When myelopathy symptoms worsen after laminoplasties, we recommend positional CTM/MRI evaluation, even though there is no apparent cord compression in the neutral MRI.

Indexed as

LaminectomyLaminoplastyAged, 80 and overCervical VertebraeFemaleHumansHypesthesiaMagnetic Resonance ImagingMaleMyelographyNeck PainPostoperative ComplicationsQuadriplegiaRange of Motion, ArticularSpinal Cord CompressionSpinal FusionLaminectomyLaminoplastyPositional CT myelographyPositional spinal cord compressionProgressive myelopathy

Identifiers

PMID28247081
OpenAlexW2594172760

What OpenQuestion holds

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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.