Biomechanical analysis of the number of implants for the immediate sacroiliac joint fixation.

Roxanne Dubé-Cyr, Carl-Éric Aubin, Isabelle Villemure, Pierre-Jean Arnoux

Abstract read

In one paragraph

Article in Spine deformity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it

0cells of the map it votes in

2citing papers in PubMed

0.2field-weighted citation impact, top 54% 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

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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

2 citing papers in PubMed, 4 citations in OpenAlex.

Fixation of the Sacroiliac Joint: A Cadaver-Based Concurrent-Controlled Biomechanical Comparison of Posterior Interposition and Posterolateral Transosseous Techniques.Neurospine · 2025
Article
Comparison of a Novel Posterior Integrated Transfixation Sacroiliac Joint Fusion Approach to the Posterolateral and Lateral Approaches: A Cadaveric Biomechanical and Computational Analysis of the Fixation, Invasiveness, and Fusion Area.Medical devices (Auckland, N.Z.) · 2024
Article

4 · The record

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5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Roxanne Dubé-CyrDepartment of Mechanical Engineering, Polytechnique Montréal, P.O. Box 6079, Downtown Station, Montreal, QC, H3C 3A7, Canada.

Carl-Éric AubinDepartment of Mechanical Engineering, Polytechnique Montréal, P.O. Box 6079, Downtown Station, Montreal, QC, H3C 3A7, Canada. carl-eric.aubin@polymtl.ca.ORCID 0000-0003-2374-008X

Isabelle VillemureDepartment of Mechanical Engineering, Polytechnique Montréal, P.O. Box 6079, Downtown Station, Montreal, QC, H3C 3A7, Canada.

Pierre-Jean ArnouxiLab-Spine (International Laboratory-Spine Imaging and Biomechanics), Marseille, France.

Aix-Marseille Université · FRCentre Hospitalier Universitaire Sainte-Justine · CA

Funding

Natural Sciences and Engineering Research Council of Canada IRCPJ 346145-16

6 · The paper itself

Abstract

purposeThe fusion of the sacroiliac joint (SIJ) is the last treatment option for chronic pain resulting from sacroiliitis. With the various implant systems available, there are different possible surgical strategies in terms of the type and number of implants and trajectories. The aim was to quantify the effect of the number of cylindrical threaded implants on SIJ stabilization.

methodsSix cadaveric pelvises were embedded in resin simulating a double-leg stance. Compression loads were applied to the sacral plate. The pelvises were tested non-instrumented and instrumented progressively with up to three cylindrical threaded implants (12-mm diameter, 60-mm length) with a posterior oblique trajectory. Vertical (VD) and angular (AD) displacements of the SIJ were measured locally using high-precision cameras and digital image correlation.

resultsCompared to the non-instrumented initial state, instrumentation with one implant significantly decreased the VD (- 24% ± 15%, p = 0.028), while the AD decreased on average by - 9% (± 15%; p = 0.345). When compared to the one-implant configuration, adding a second implant further statistically decreased VD (- 10% ± 7%, p = 0.046) and AD (- 19% ± 15, p = 0.046). Adding a third implant did not lead to additional stabilization for VD nor AD (p > 0.5).

conclusionCompared to the non-instrumented initial state, the two-implant configuration reduces both vertical and angular displacements the most, while minimizing the number of implants.

Indexed as

Sacroiliac JointSpinal FusionHumansMinimally Invasive Surgical ProceduresProstheses and ImplantsSacrumArthrodesisBiomechanicsMinimally invasive surgerySacroiliac jointSacroiliac joint fixationSacroiliac joint fusion

Identifiers

PMID33755927

DOI10.3109/17453674.2012.727079

OpenAlexW3137544422

What OpenQuestion holds

Textmetadata

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.