Evidence map›Paper›PMID 32529525›Full record

SynthesisEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2020

Pedicle screw fixation of thoracolumbar fractures: conventional short segment versus short segment with intermediate screws at the fracture level-a systematic review and meta-analysis.

Carolijn Kapoen, Yang Liu, Frank W Bloemers, Jaap Deunk

Registry-linked trialOpen access · hybridAbstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis 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, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06561997 (Enhancing Thoracolumbar Burst Fracture Treatment), which is not on this map. Cited by 58 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 1 pooled it
6.9field-weighted citation impact, top 2% 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.

NCT06561997 completednot on this map

Enhancing Thoracolumbar Burst Fracture Treatment: The Advantage of Robot-Assisted Posterior Fixation for Improved Reduction and Collapse Prevention

TypeobservationalSponsorPeng LiuRan2017 to 2020Enrolled182ConditionsSurgeryArmsRobot-assisted, Free-hand
3 · Its place in the literature

Who cites it

58 citing papers in PubMed, 1 synthesis or guideline pooled it, 75 citations in OpenAlex.

  1. Pooled it
  2. Whether patients with load sharing classification (LSC) score ≤ 6 need the additional screws in the fractured vertebra?: a prospective randomized study with 2 years of follow up.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
    Trial
  3. Article
  4. Article
  5. Does surgical approach or preoperative deformity better predict outcomes in thoracolumbar fractures? A comparative study of minimally invasive versus open techniques.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
    Article
  6. Article
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  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. [Clinical study of percutaneous short-segment injured vertebra pedicle screw fixation combined with bone grafting in treatment of thoracolumbar fractures].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2025
    Article
  14. Clinical and Radiological Efficacy of Short-SegmentKorean journal of neurotrauma · 2025
    Article
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  16. Article
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  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Carolijn KapoenDepartment of Trauma Surgery, VU University Medical Center, Amsterdam UMC, 1081 HV, Amsterdam, The Netherlands. c.m.kapoen@student.vu.nl.ORCID 0000-0002-7344-4695
Yang LiuDepartment of Clinical Sciences Lund, Orthopedics, Lund University, Faculty of Medicine, 22185, Lund, Sweden.
Frank W BloemersDepartment of Trauma Surgery, VU University Medical Center, Amsterdam UMC, 1081 HV, Amsterdam, The Netherlands.
Jaap DeunkDepartment of Trauma Surgery, VU University Medical Center, Amsterdam UMC, 1081 HV, Amsterdam, The Netherlands.
Amsterdam UMC Location Vrije Universiteit Amsterdam · NLLund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivePosterior short-segment fixation (4-screw construct = 4S) is the conventional surgical technique for thoracolumbar fractures. The effect of adding two intermediate pedicle screws at the fractured level (6-screw construct = 6S) is still a matter of debate. This review aims to compare the results between 4 and 6S pedicle screw fixation for thoracolumbar fractures.

methodsA systematic review and meta-analysis were performed. The databases PubMed, Embase and Google Scholar were searched until January 2020. Inclusion criteria were studies comparing 4S and 6S techniques in patients with thoracolumbar fractures. Non-comparative studies and studies without full text were excluded. Cochrane risk of bias was assessed, and the GRADE approach was used to present the quality of evidence.

resultsTwenty-seven studies, of which 21 randomized controlled trials, with a total of 1890 patients (940 with 4S and 950 with 6S) were included. Meta-analysis showed that the 6S technique resulted in significantly lower pain scores, better short-term and long-term Cobb angles, less loss of correction and less implant failures. However, longer operation time and more blood loss were seen with the 6S technique. Length of hospital stay, Oswestry Disability Index scores and infections did not differ significantly between the 6S and 4S techniques. Quality of the evidence according to GRADE was moderate to low.

conclusionIn the treatment of thoracolumbar fractures, adding intermediate screws at the fracture level (6S) results in less post-operative pain, better radiological outcomes and less implant failure at the cost of a longer operation time and higher blood loss.

Indexed as

Pedicle ScrewsSpinal FracturesFracture Fixation, InternalHumansLumbar VertebraeThoracic VertebraeTreatment OutcomeFracture levelIntermediate screwPedicle screwSpineThoracolumbar fracture

Identifiers

PMID32529525
OpenAlexW3034936940

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.