Evidence map›Paper›PMID 33727613›Full record

ArticleScientific reports2021

Biomechanical influence of the surgical approaches, implant length and density in stabilizing ankylosing spondylitis cervical spine fracture.

Yaoyao Liu, Zhong Wang, Mingyong Liu, Xiang Yin, Jiming Liu, Jianhua Zhao, Peng Liu

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Modified anterior long-segment fixation versus posterior and combined approaches for subaxial cervical fractures in ankylosing spondylitis: a retrospective cohort 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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  7. [Traumatic injuries in ankylosing spinal diseases].Unfallchirurgie (Heidelberg, Germany) · 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.

Yaoyao Liu *Department of Spine Surgery, Army Medical Center of PLA (Daping Hospital), Army Medical University, No. 10 Changjiang Road, Yuzhong District, Chongqing, 400042, China.
Zhong Wang *Department of Spine Surgery, Army Medical Center of PLA (Daping Hospital), Army Medical University, No. 10 Changjiang Road, Yuzhong District, Chongqing, 400042, China.
Mingyong LiuDepartment of Spine Surgery, Army Medical Center of PLA (Daping Hospital), Army Medical University, No. 10 Changjiang Road, Yuzhong District, Chongqing, 400042, China.
Xiang YinDepartment of Spine Surgery, Army Medical Center of PLA (Daping Hospital), Army Medical University, No. 10 Changjiang Road, Yuzhong District, Chongqing, 400042, China.
Jiming LiuChina Jiejun Technique Corporation, Chongqing, China.
Jianhua ZhaoDepartment of Spine Surgery, Army Medical Center of PLA (Daping Hospital), Army Medical University, No. 10 Changjiang Road, Yuzhong District, Chongqing, 400042, China.
Peng LiuDepartment of Spine Surgery, Army Medical Center of PLA (Daping Hospital), Army Medical University, No. 10 Changjiang Road, Yuzhong District, Chongqing, 400042, China. liupengd@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ankylosing spondylitis cervical spine fractures (ASCFs) are particularly unstable and need special consideration when selecting appropriate internal fixation technology. However, there is a lack of related biomechanical studies. This study aimed to investigate the biomechanical influence of the pattern, length, and density of instrumentation for the treatment of ASCF. Posterior, anterior, and various combined fixation approaches were constructed using the finite element model (FEM) to mimic the surgical treatment of ASCFs at C5/6. The rate of motion change (RMC) at the fractured level and the internal stress distribution (ISD) were observed. The results showed that longer segments of fixation and combined fixation approaches provided better stability and lowered the maximal stress. The RMC decreased more significantly when the length increased from 1 to 3 levels (302% decrease under flexion, 134% decrease under extension) than from 3 to 5 levels (22% decrease under flexion, 23% decrease under extension). Longer fixation seems to be more stable with the anterior/posterior approach alone, but 3-level posterior fixation may be the most cost-effective option. It is recommended to perform surgery with combined approaches, which provide the best stability. Long skipped-screwing posterior fixation is an alternative technique for use in ASCF patients.

Indexed as

Cervical VertebraeFracture Fixation, InternalModels, BiologicalProstheses and ImplantsSpinal FracturesSpinal FusionSpondylitis, AnkylosingHumans

Identifiers

PMID33727613
PMCPMC7966376

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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.