Evidence map›Paper›PMID 32270279›Full record

ArticleArchives of orthopaedic and trauma surgery2020

Comparison of two reinforcement rings for primary total hip arthroplasty addressing displaced acetabular fractures: a biomechanical analysis.

Johannes Becker, M Winkler, C von Rüden, E Bliven, P Augat, H Resch

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 28% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Biomechanical analysis of fixation methods in acetabular fractures: a systematic review of test setups.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Pooled it
  2. Article
  3. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Johannes BeckerDepartment of Trauma Surgery, BG Unfallklinik Murnau, Murnau, Germany. johannes.becker@klinikum-gap.de.
M WinklerInstitute for Biomechanics, BG Unfallklinik Murnau, Murnau, Germany.
C von RüdenDepartment of Trauma Surgery, BG Unfallklinik Murnau, Murnau, Germany.
E BlivenInstitute for Biomechanics, BG Unfallklinik Murnau, Murnau, Germany.
P AugatInstitute for Biomechanics, BG Unfallklinik Murnau, Murnau, Germany.
H ReschDepartment of Traumatology and Sports Medicine, Paracelsus Medical University, Salzburg, Austria.
Berufsgenossenschaftliche Unfallklinik Murnau · DEParacelsus Medical University · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAim of this study was to biomechanically compare two different acetabular cup fixation constructs in terms of fracture fixation for displaced acetabular fractures involving the anterior column with hemitransverse fracture under partial and full weight-bearing conditions.

methodsTwo different reinforcement rings designed as cages for primary THA were biomechanically tested in terms of managing a complex acetabular fracture. Single-leg stance cyclic loading was performed to assess fracture gap movement and fragment rotation. Twelve hemi pelvis Sawbones were divided into two groups: primary THA with acetabulum roof reinforcement plate (ARRP) (n = 6) and primary THA with Burch-Schneider reinforcement cage (BSRC) (n = 6).

resultsDuring loading under partial weight-bearing (250 N) fracture gap movement tended to be larger in the BSRC group as compared to the ARRP group. Under full weight-bearing conditions, the ARRP showed 60% significantly less motion (p = 0.035) of the os ilium to os ischii gap compared to BSRC. Fracture gap movements between the os ilium and spina iliaca fragments were significantly reduced by 76% (p = 0.048) for ARRP in contrast to BSRC. The ARRP group also demonstrated significantly less movement in the fracture gaps os ischii to quadrilateral plate (62% reduction, p = 0.009) and quadrilateral plate to spina iliaca (87% reduction, p < 0.001). Significantly less rotational movement of the quadrilateral plate to the os ilium was exhibited by the ARRP group (p = 0.015).

conclusionsThe presented acetabulum roof-reinforcement plate (ARRP) provides stable conditions at the acetabular component with adequate stabilization of a displaced acetabular fracture.

Indexed as

AcetabulumAgedArthroplasty, Replacement, HipBiomechanical PhenomenaBone PlatesComparative Effectiveness ResearchFracture DislocationFractures, BoneHumansInternal FixatorsMaterials TestingTreatment OutcomeWeight-BearingAcetabulum roof reinforcement plateBurch–Schneider reinforcement cageDisplaced acetabular fractureHip arthroplasty

Identifiers

PMID32270279
PMCPMC7674566
OpenAlexW3016187290

What OpenQuestion holds

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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.