Evidence map›Paper›PMID 27569760›Full record

ArticleJournal of the mechanical behavior of biomedical materials2017

Planar biaxial extension of the lumbar facet capsular ligament reveals significant in-plane shear forces.

Amy A Claeson, Victor H Barocas

Open access · greenAbstract read
In one paragraph

Article in Journal of the mechanical behavior of biomedical materials, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

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  11. Strong triaxial coupling and anomalous Poisson effect in collagen networks.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  12. Load transfer, damage, and failure in ligaments and tendons.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2018
    Review
  13. The role of the facet capsular ligament in providing spinal stability.Computer methods in biomechanics and biomedical engineering · 2018
    Article
  14. Article
  15. Article
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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

2 authors at 1 institution in 1 country.

Amy A ClaesonDepartment of Biomedical Engineering, University of Minnesota - Twin Cities, Minneapolis, MN, USA.
Victor H BarocasDepartment of Biomedical Engineering, University of Minnesota - Twin Cities, Minneapolis, MN, USA. Electronic address: baroc001@umn.edu.
Twin Cities Orthopedics · US

Funding

Musculoskeletal Training GrantT32AR050938 · NIAMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI CLOHISY, DENIS R · 2004 to 2020
$3.0M
Multiscale Modeling of Facet Capsule MechanobiologyU01EB016638 · NIBIB · UNIVERSITY OF MINNESOTA · PI BAROCAS, VICTOR H, WINKELSTEIN, BETH A · 2013 to 2017
$2.4M
NIAMS NIH HHS T32 AR050938NIBIB NIH HHS U01 EB016638
6 · The paper itself

Abstract

The lumbar facet capsular ligament (FCL) articulates with six degrees of freedom during spinal motions of flexion/extension, lateral bending, and axial rotation. The lumbar FCL is composed of highly aligned collagen fiber bundles on the posterior surface (oriented primarily laterally between the rigid articular facets) and irregularly oriented elastin on the anterior surface. Because the FCL is a capsule, it has multiple insertion sites across the lumbar facet joint, which, along with its material structure, give rise to complicated deformations in vivo. We performed planar equibiaxial mechanical tests on excised healthy cadaveric lumbar FCLs (n=6) to extract normal and shear reaction forces, and fit sample-specific two-fiber-family finite element models to the experimental force data. An eight-parameter anisotropic, hyperelastic model was used. Shear forces at maximum extension (mean values of 1.68N and 3.01N in the two directions) were of comparable magnitude to the normal forces perpendicular to the aligned collagen fiber bundles (4.67N) but smaller than normal forces in the fiber direction (16.11N). Inclusion of the experimental shear forces in the model optimization yielded fits with highly aligned fibers oriented at a specific angle across all samples, typically with one fiber population aligned nearly horizontally and the other at an oblique angle. Conversely, models fit to only the normal force data resulted in a broad range of fiber angles with low specificity. We found that shear forces generated through planar equibiaxial extension aided the model fit in describing the anisotropic nature of the FCL surface.

Indexed as

AnisotropyBiomechanical PhenomenaCadaverCollagenFinite Element AnalysisHumansLigamentsLumbar VertebraeModels, TheoreticalRange of Motion, ArticularRotationZygapophyseal JointCollagen

Identifiers

PMID27569760
PMCPMC5154816
OpenAlexW2510413996

What OpenQuestion holds

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LicenceTDM
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.