Evidence map›Paper›PMID 34073570›Full record

ArticleJournal of clinical medicine2021

Biomechanical Comparison of Five Fixation Techniques for Unstable Fragility Fractures of the Pelvic Ring.

Moritz F Lodde, J Christoph Katthagen, Clemens O Schopper, Ivan Zderic, Geoff Richards, Boyko Gueorguiev, Michael J Raschke, René Hartensuer

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

20 citing papers in PubMed, 36 citations in OpenAlex.

  1. Sacroiliac versus transiliac-transsacral screw osteosynthesis in osteoporotic pelvic fractures: a biomechanical comparison.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2023
    Trial
  2. Retrograde locked nailing of pubic ramus fractures: a technical note.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026
    Article
  3. Percutaneous fixation of posterior pelvic ring lesions in the elderly: current evidence and recent advances.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026
    Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Implantation of S1AIS has priority as a sacroiliac joint fixation technique.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
    Article
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  18. The grade of instability in fragility fractures of the pelvis correlates with impaired early mobilization.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Observational
  19. Review
  20. 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

8 authors at 2 institutions in 2 countries.

Moritz F LoddeAO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland.ORCID 0000-0001-6040-4996
J Christoph KatthagenDepartment for Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Albert-Schweitzer-Campus 1, Building W1, Waldeyerstraße 1, 48149 Münster, Germany.
Clemens O SchopperAO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland.
Ivan ZdericAO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland.ORCID 0000-0003-0484-887X
Geoff RichardsAO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland.ORCID 0000-0002-7778-2480
Boyko GueorguievAO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos, Switzerland.ORCID 0000-0001-9795-115X
Michael J RaschkeDepartment for Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Albert-Schweitzer-Campus 1, Building W1, Waldeyerstraße 1, 48149 Münster, Germany.
René HartensuerDepartment for Trauma, Hand and Reconstructive Surgery, University Hospital Münster, Albert-Schweitzer-Campus 1, Building W1, Waldeyerstraße 1, 48149 Münster, Germany.ORCID 0000-0002-6175-2754
AO Foundation · CHUniversity Hospital Münster · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIncidence of pelvic ring fractures has increased over the past four decades, especially after low-impact trauma-classified as fragility fractures of the pelvis (FFP). To date, there is a lack of biomechanical evidence for the superiority of one existing fixation techniques over another. An FFP type IIc was simulated in 50 artificial pelvises, assigned to 5 study groups: Sacroiliac (SI) screw, SI screw plus supra-acetabular external fixator, SI screw plus plate, SI screw plus retrograde transpubic screw, or S1/S2 ala-ilium screws. The specimens were tested under progressively increasing cyclic loading. Axial stiffness and cycles to failure were analysed. Displacement at the fracture sites was evaluated, having been continuously captured via motion tracking.

resultsFixation with SI screw plus plate and SI screw plus retrograde transpubic screw led to higher stability than the other tested techniques. The S1/S2 ala-ilium screws were more stable than the SI screw or the SI screw plus external fixator.

conclusionsIn cases with displaced fractures, open reduction and plate fixation provides the highest stability, whereas in cases where minimally invasive techniques are applicable, a retrograde transpubic screw or S1/S2 ala-ilium screws can be considered as successful alternative treatment options.

Indexed as

biomechanicsexternal fixatorpelvic ring fractureretrograde transpubic screwS1/S2 ala–ilium screws

Identifiers

PMID34073570
PMCPMC8199358
OpenAlexW3165761238

What OpenQuestion holds

Textmetadata
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.