Evidence map›Paper›PMID 26069654›Full record

ArticleCartilage2013

Comparison of Three Methods to Quantify Repair Cartilage Collagen Orientation.

Keir A Ross, Rebecca M Williams, Lauren V Schnabel, Hussni O Mohammed, Hollis G Potter, Gino Bradica, Emme Castiglione, Sarah L Pownder, Patrick W Satchell, Ryan A Saska and 1 more

Abstract read
In one paragraph

Article in Cartilage, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.5field-weighted citation impact, top 32% 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

10 citing papers in PubMed, 24 citations in OpenAlex.

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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

11 authors at 3 institutions in 1 country.

Keir A RossDepartment of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
Rebecca M WilliamsDepartment of Biomedical Engineering, College of Engineering, Cornell University, Ithaca, NY, USA.
Lauren V SchnabelDepartment of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
Hussni O MohammedDepartment of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
Hollis G PotterHospital for Special Surgery, Weill Cornell Medical College, New York, USA.
Gino BradicaKensey Nash Corporation, Exton, PA, USA.
Emme CastiglioneKensey Nash Corporation, Exton, PA, USA.
Sarah L PownderDepartment of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
Patrick W SatchellDepartment of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
Ryan A SaskaKensey Nash Corporation, Exton, PA, USA.
Lisa A FortierDepartment of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
Cornell University · USNew York State College of Veterinary Medicine · USHospital for Special Surgery · US

Funding

Cornell University Veterinary Investigator ProgramT35OD010941 · OD · CORNELL UNIVERSITY · PI WEISS, ROBERT S · 2012 to 2024
$813k
NIH HHS T35 OD010941
6 · The paper itself

Abstract

objectiveThe aim of this study was to determine if the noninvasive or minimally invasive and nondestructive imaging techniques of quantitative T2-mapping or multiphoton microscopy (MPM) respectively, could detect differences in cartilage collagen orientation similar to polarized light microscopy (PLM). It was hypothesized that MRI, MPM, and PLM would all detect quantitative differences between repair and normal cartilage tissue.

methodsOsteochondral defects in the medial femoral condyle were created and repaired in 5 mature goats. Postmortem, MRI with T2-mapping and histology were performed. T2 maps were generated and a mean T2 value was calculated for each region of interest. Histologic slides were assessed using MPM with measurements of autocorrelation ellipticity, and by PLM with application of a validated scoring method. Collagen orientation using each of the 3 modalities (T2-mapping, MPM, and PLM) was measured in the center of the repair tissue and compared to remote, normal cartilage.

resultsMRI, MPM, and PLM were able to detect a significant difference between repair and normal cartilage (n = 5). The average T2 value was longer for repair tissue (41.43 ± 9.81 ms) compared with normal cartilage (27.12 ± 14.22 ms; P = 0.04); MPM autocorrelation ellipticity was higher in fibrous tissue (3.75 ± 1.17) compared with normal cartilage (2.24 ± 0.51; P = 0.01); the average PLM score for repair tissue was lower (1.6 ± 1.02) than the score for remote normal cartilage (4.4 ± 0.42; P = 0.002). The strongest correlation among the methods was between MRI and PLM (r = -0.76; P = 0.01), followed by MPM and PLM (r = -0.58; P = 0.08), with the weakest correlation shown between MRI and MPM (r = 0.35; P = 0.31).

conclusionAll 3 imaging methods quantitatively measured differences in collagen orientation between repair and normal cartilage, but at very different levels of resolution. PLM is destructive to tissue and requires euthanasia, but because MPM can be used arthroscopically, both T2-mapping and MPM can be performed in vivo, offering nondestructive means to assess collagen orientation that could be used to obtain longitudinal data in cartilage repair studies.

Indexed as

articular cartilagecartilage repairoutcome measurestissue

Identifiers

PMID26069654
PMCPMC4297104
OpenAlexW2024974230

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.