Evidence map›Paper›PMID 36474870›Full record

ArticleOsteoarthritis and cartilage open2020

The zonal evolution of collagen-network morphology quantified in early osteoarthritic grades of human cartilage.

Phoebe Szarek, Magnus B Lilledahl, Nancy C Emery, Courtland G Lewis, David M Pierce

Abstract read
In one paragraph

Article in Osteoarthritis and cartilage open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

7 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Depth-Wise Changes in Tibial and Femoral Human Knee Joint Cartilage at Different Severities of Osteoarthritis.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026
    Article
  5. Article
  6. Article
  7. 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

5 authors.

Phoebe SzarekDepartment of Biomedical Engineering, University of Connecticut, Storrs, CT, USA.
Magnus B LilledahlDepartment of Physics, Norwegian University of Science and Technology, Trondheim, NOR, USA.
Nancy C EmeryDepartment of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, USA.
Courtland G LewisBone & Joint Institute, Hartford Healthcare, Hartford, CT, USA.
David M PierceDepartment of Biomedical Engineering, University of Connecticut, Storrs, CT, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: We aimed to directly quantify the zone-specific evolution in morphology of collagen fibers and networks in human cartilage during the progression of early osteoarthritis. Collagen fibers exhibit depth-dependent orientations and diameters crucial to their mechanical roles. Cartilage degenerates in osteoarthritis, affecting the morphology of the collagen network and ultimately the intra-tissue mechanics. Design: We obtained specimens of human cartilage from healthy human knees ( Results: Dispersion in the alignment of collagen fibers increased with progression of early OA in both the superficial and deep zones, and decreased in the middle zone, while principal orientation did not change significantly. The non-normal and right-skewed distributions in fiber diameters did not evolve with the progression of OA. Conclusions: We provide the research community with

Indexed as

CartilageCollagen networkFiber orientationOsteoarthritisTransmission electron microscopy

Identifiers

PMID36474870
PMCPMC9718087

What OpenQuestion holds

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Registered trials

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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.