Evidence map›Paper›PMID 28216748›Full record

ArticleIndian journal of orthopaedics

Comparison of occipitocervical and atlantoaxial fusion in treatment of unstable Jefferson fractures.

Yong Hu, Zhen-Shan Yuan, Christopher K Kepler, Wei-Xin Dong, Xiao-Yang Sun, Jiao Zhang

Open access · hybridAbstract read
In one paragraph

Article in Indian journal of orthopaedics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Perioperative outcomes and technical and patient-reported success of rigid occipitocervical fusions in adults: a systematic review and meta-analysis.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
    Pooled it
  2. Article
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  4. Motion preserving C1 ring lateral mass screw fixation with transverse rod for isolated unstable Jefferson fracture of atlas vertebra: a multicentric 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 · 2026
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  8. Isolated C1 arch fractures: C1-2 fusion vs. C1 osteosynthesis - surgical strategies for potentially unstable injuries.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

6 authors at 2 institutions in 2 countries.

Yong HuDepartment of Spinal Surgery, Ningbo No. 6 Hospital and The Renfang Institute, Ningbo 315040, Zhejiang Province, China.
Zhen-Shan YuanDepartment of Spinal Surgery, Ningbo No. 6 Hospital and The Renfang Institute, Ningbo 315040, Zhejiang Province, China.
Christopher K KeplerDepartment of Orthopaedic Surgery, Thomas Jefferson University and Rothman Institute, Philadelphia, Pennsylvania 19107, USA.
Wei-Xin DongDepartment of Spinal Surgery, Ningbo No. 6 Hospital and The Renfang Institute, Ningbo 315040, Zhejiang Province, China.
Xiao-Yang SunDepartment of Spinal Surgery, Ningbo No. 6 Hospital and The Renfang Institute, Ningbo 315040, Zhejiang Province, China.
Jiao ZhangDepartment of Spinal Surgery, Ningbo No. 6 Hospital and The Renfang Institute, Ningbo 315040, Zhejiang Province, China.
Ningbo No.6 Hospital · CNRothman Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundControversy exists regarding the management of unstable Jefferson fractures, with some surgeons performing reduction and immobilization of the patient in a halo vest and others performing open reduction and internal fixation. This study compares the clinical and radiological outcome parameters between posterior atlantoaxial fusion (AAF) and occipitocervical fusion (OCF) constructs in the treatment of the unstable atlas fracture. MATERIALS AND

methods68 consecutive patients with unstable Jefferson fractures treated by AAF or OCF between October 2004 and March 2011 were included in this retrospective evaluation from institutional databases. The authors reviewed medical records and original images. The patients were divided into two surgical groups treated with either AAF (

resultsFive patients with incomplete paralysis (7.4%) demonstrated postoperative improvement by more than 1 grade on the American Spinal Injury Association impairment scale. The JOA score of the AAF group improved from 12.5 ± 3.6 preoperatively to 15.7 ± 2.3 postoperatively, while the JOA score of the OCF group improved from 11.2 ± 3.3 preoperatively to 14.8 ± 4.2 postoperatively. The VAS score of AAF group decreased from 4.8 ± 1.5 preoperatively to 1.0 ± 0.4 postoperatively, the VAS score of the OCF group decreased from 5.4 ± 2.2 preoperatively to 1.3 ± 0.9 postoperatively.

conclusionsThe OCF or AAF combined with short-term external immobilization can establish the upper cervical stability and prevent further spinal cord injury and nerve function damage.

Indexed as

atlantoaxial fusionatlanto-axial jointatlanto-occipital jointatlasAtlas fracturecervicalcervical spineinstrumentationJefferson fracturesoccipitocervical fusionSpinal fracturesspinal fusion

Identifiers

PMID28216748
PMCPMC5296845
OpenAlexW2570715370

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.