Evidence map›Paper›PMID 29624623›Full record

ArticlePloS one2018

Motion and dural sac compression in the upper cervical spine during the application of a cervical collar in case of unstable craniocervical junction-A study in two new cadaveric trauma models.

Shiyao Liao, Niko R E Schneider, Petra Hüttlin, Paul A Grützner, Frank Weilbacher, Stefan Matschke, Erik Popp, Michael Kreinest

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
5.0field-weighted citation impact, top 5% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Evidence for the use of spinal collars in stabilising spinal injuries in the pre-hospital setting in trauma patients: a systematic review.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Pooled it
  2. Observational
  3. Review
  4. Analysis of spine motion during prehospital extrication procedures in motorsport.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2024
    Article
  5. Epidemiology and predictors of traumatic spine injury in severely injured patients: implications for emergency procedures.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Article
  6. Development and first application testing of a new protocol for CT-based stability evaluation of the injured upper cervical spine.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Article
  7. Article
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  12. Analysis of cervical spine immobilization during patient transport in emergency medical services.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2021
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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 2 institutions in 1 country.

Shiyao LiaoBG Trauma Center Ludwigshafen, Department of Trauma Surgery and Orthopaedics, Ludwigshafen, Germany.
Niko R E SchneiderUniversity Hospital Heidelberg, Department of Anesthesiology, Heidelberg, Germany.
Petra HüttlinBG Trauma Center Ludwigshafen, Department of Trauma Surgery and Orthopaedics, Ludwigshafen, Germany.
Paul A GrütznerBG Trauma Center Ludwigshafen, Department of Trauma Surgery and Orthopaedics, Ludwigshafen, Germany.
Frank WeilbacherUniversity Hospital Heidelberg, Department of Anesthesiology, Heidelberg, Germany.
Stefan MatschkeBG Trauma Center Ludwigshafen, Department of Trauma Surgery and Orthopaedics, Ludwigshafen, Germany.
Erik PoppUniversity Hospital Heidelberg, Department of Anesthesiology, Heidelberg, Germany.
Michael KreinestBG Trauma Center Ludwigshafen, Department of Trauma Surgery and Orthopaedics, Ludwigshafen, Germany.ORCID 0000-0002-1246-8714
Klinikum Ludwigshafen · DEHeidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUnstable conditions of the craniocervical junction such as atlanto-occipital dislocation (AOD) or atlanto-axial instability (AAI) are severe injuries with a high risk of tetraplegia or death. Immobilization by a cervical collar to protect the patient from secondary damage is a standard procedure in trauma patients. If the application of a cervical collar to a patient with an unstable craniocervical condition may cause segmental motion and secondary injury to the spinal cord is unknown. The aim of the current study is (i) to analyze compression on the dural sac and (ii) to determine relative motion of the cervical spine during the procedure of applying a cervical collar in case of ligamentous unstable craniocervical junction. METHODS AND

findingsLigamentous AOD as well as AOD combined with ligamentous AAI was simulated in two newly developed cadaveric trauma models. Compression of the dural sac and segmental angulation in the upper cervical spine were measured on video fluoroscopy after myelography during the application of a cervical collar. Furthermore, overall three-dimensional motion of the cervical spine was measured by a motion tracking system. In six cadavers each, the two new trauma models on AOD and AOD combined with AAI could be implemented. Mean dural sac compression was significantly increased to -1.1 mm (-1.3 to -0.7 mm) in case of AOD and -1.2 mm (-1.6 to -0.6 mm) in the combined model of AOD and AAI. Furthermore, there is a significant increased angulation at the C0/C1 level in the AOD model. Immense three-dimensional movement up to 22.9° of cervical spine flexion was documented during the procedure.

conclusionThe current study pointed out that applying a cervical collar in general will cause immense three-dimensional movement. In case of unstable craniocervical junction, this leads to a dural sac compression and thus to possible damage to the spinal cord.

Indexed as

Joint InstabilityRange of Motion, ArticularAnimalsAtlanto-Axial JointCadaverDisease Models, AnimalFemaleFluoroscopyHumansJoint DislocationsMaleRadiographyWounds and Injuries

Identifiers

PMID29624623
PMCPMC5889057
OpenAlexW2795463708

What OpenQuestion holds

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LicenceCC BY
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.