Evidence map›Paper›PMID 24231813›Full record

ArticleJournal of biomechanical engineering2013

Localization of viscous behavior and shear energy dissipation in articular cartilage under dynamic shear loading.

Mark R Buckley, Lawrence J Bonassar, Itai Cohen

Open access · bronzeAbstract read
In one paragraph

Article in Journal of biomechanical engineering, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Cartilage articulation exacerbates chondrocyte damage and death after impact injury.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2021
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Apparatus and Method for Rapid Detection of Acoustic Anisotropy in Cartilage.Journal of medical and biological engineering · 2020
    Article
  14. Mitoprotective therapy prevents rapid, strain-dependent mitochondrial dysfunction after articular cartilage injury.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2020
    Article
  15. Article
  16. Review
  17. Article
  18. 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

3 authors at 1 institution in 1 country.

Mark R Buckley
Lawrence J Bonassar
Itai Cohen
Cornell University · US

Funding

Mapping Shear Properties of Articular Cartilage Using Fast Confocal MicroscopyR21AR054867 · NIAMS · CORNELL UNIVERSITY · PI COHEN, ITAI · 2007 to 2008
$365k
NIAMS NIH HHS R21 AR054867NIAMS NIH HHS R21AR054867
6 · The paper itself

Abstract

Though remarkably robust, articular cartilage becomes susceptible to damage at high loading rates, particularly under shear. While several studies have measured the local static and steady-state shear properties of cartilage, it is the local viscoelastic properties that determine the tissue's ability to withstand physiological loading regimens. However, measuring local viscoelastic properties requires overcoming technical challenges that include resolving strain fields in both space and time and accurately calculating their phase offsets. This study combined recently developed high-speed confocal imaging techniques with three approaches for analyzing time- and location-dependent mechanical data to measure the depth-dependent dynamic modulus and phase angles of articular cartilage. For sinusoidal shear at frequencies f = 0.01 to 1 Hz with no strain offset, the dynamic shear modulus |G*| and phase angle δ reached their minimum and maximum values (respectively) approximately 100 μm below the articular surface, resulting in a profound focusing of energy dissipation in this narrow band of tissue that increased with frequency. This region, known as the transitional zone, was previously thought to simply connect surface and deeper tissue regions. Within 250 μm of the articular surface, |G*| increased from 0.32 ± 0.08 to 0.42 ± 0.08 MPa across the five frequencies tested, while δ decreased from 12 deg ± 1 deg to 9.1 deg ± 0.5 deg. Deeper into the tissue, |G*| increased from 1.5 ± 0.4 MPa to 2.1 ± 0.6 MPa and δ decreased from 13 deg ± 1 deg to 5.5 deg ± 0.2 deg. Viscoelastic properties were also strain-dependent, with localized energy dissipation suppressed at higher shear strain offsets. These results suggest a critical role for the transitional zone in dissipating energy, representing a possible shift in our understanding of cartilage mechanical function. Further, they give insight into how focal degeneration and mechanical trauma could lead to sustained damage in this tissue.

Indexed as

Shear StrengthWeight-BearingAnimalsCartilage, ArticularCattleMaterials TestingStress, MechanicalViscosity

Identifiers

PMID24231813
PMCPMC3705981
OpenAlexW2162702157

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.