Evidence map›Paper›PMID 36036763›Full record

ArticleGlobal spine journal2024

Global Validation of the AO Spine Upper Cervical Injury Classification: Geographic Region Affects Reliability and Reproducibility.

Mark J Lambrechts, Gregory D Schroeder, Brian A Karamian, Jose A Canseco, Richard Bransford, Cumhur Oner, Lorin M Benneker, Frank Kandziora, Rajasekaran Shanmuganathan, Rishi Kanna and 9 more

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Article in Global spine journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

19 authors.

Mark J LambrechtsRothman Institute at Thomas Jefferson University, Philadelphia, PA, USA.ORCID 0000-0002-9106-2228
Gregory D SchroederRothman Institute at Thomas Jefferson University, Philadelphia, PA, USA.
Brian A KaramianRothman Institute at Thomas Jefferson University, Philadelphia, PA, USA.ORCID 0000-0003-0512-6019
Jose A CansecoRothman Institute at Thomas Jefferson University, Philadelphia, PA, USA.ORCID 0000-0002-2152-5725
Richard BransfordDepartment of Orthopaedicand Sports Medicine, Harborview Medical Center, University of Washington, Seattle, WA, USA.ORCID 0000-0003-2293-5774
Cumhur OnerDepartment of Orthopedic Surgery, University Medical Center, University of Utrecht, Utrecht, the Netherlands.
Lorin M BennekerSpine Unit, Sonnenhof Spital Bern, University of Bern, Bern, Switzerland.
Frank KandzioraUnfallklinik Frankfurt Am Main, Frankfurt, Germany.
Rajasekaran ShanmuganathanDepartment of Orthopedics and Spine Surgery, Ganga Hospital, Coimbatore, India.ORCID 0000-0001-6043-006X
Rishi KannaDepartment of Orthopedics and Spine Surgery, Ganga Hospital, Coimbatore, India.
Andrei F JoaquimDepartment of Neurology, Neurosurgery Division, State University of Campinas, Campinas, Sao Paulo, Brazil.ORCID 0000-0003-2645-0483
Jens R ChapmanSwedish Medical Center, Swedish Neuroscience Institute, Seattle, WA, USA.
Emiliano VialleCajuru University Hospital, Catholic University of Paraná, Curitiba, Brazil.ORCID 0000-0003-1157-4889
Mohammad El-SharkawiDepartment of Orthopaedic and Trauma Surgery, Assiut University, Assiut, Egypt.ORCID 0000-0001-6177-7145
Marcel DvorakUniversity of British Columbia, Vancouver, BC, Canada.
Klaus SchnakeCenter for Spinal and Scoliosis Surgery, Malteser Waldkrankenhaus St. Marien, Erlangen, Germany.
Christopher K KeplerRothman Institute at Thomas Jefferson University, Philadelphia, PA, USA.
Alexander R VaccaroRothman Institute at Thomas Jefferson University, Philadelphia, PA, USA.
AO Spine Upper Cervical Injury Classification International Members

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designGlobal Survey.

objectiveTo determine the accuracy, interobserver reliability, and intraobserver reproducibility of the AO Spine Upper Cervical Injury Classification System based on surgeons' AO Spine region of practice (Africa, Asia, Central/South America, Europe, Middle East, and North America).

methodsA total of 275 AO Spine members assessed 25 upper cervical spine injuries and classified them according to the AO Spine Upper Cervical Injury Classification System. Reliability, reproducibility, and accuracy scores were obtained over two assessments administered at three-week intervals. Kappa coefficients (ƙ) determined the interobserver reliability and intraobserver reproducibility.

resultsOn both assessments, participants from Europe and North America had the highest classification accuracy, while participants from Africa and Central/South America had the lowest accuracy (

conclusionsThe AO Spine Upper Cervical Injury Classification System can be applied with high accuracy, interobserver reliability, and intraobserver reproducibility. However, lower classification accuracy and reliability were found in regions of Africa and Central/South America, especially for severe atlas injuries (IIB and IIC) and atypical hangman's type fractures (IIIB injuries).

Indexed as

AO spinecervicalinjury classificationvalidation

Identifiers

PMID36036763
PMCPMC11192108

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LicenceCC BY-NC-ND
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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.