Evidence map›Paper›PMID 31301430›Full record

Observational studyOsteoarthritis and cartilage2019

Radiographically normal knees with contralateral joint space narrowing display greater change in cartilage transverse relaxation time than those with normal contralateral knees: a model of early OA? - data from the Osteoarthritis Initiative (OAI).

W Wirth, S Maschek, F W Roemer, L Sharma, G N Duda, F Eckstein

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in Osteoarthritis and cartilage, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00080171 (Osteoarthritis Initiative), which is not on this map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–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.

NCT00080171 completednot on this map

Osteoarthritis Initiative (OAI): A Knee Health Study

TypeobservationalSponsorNational Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)Ran2004 to 2015Enrolled4,796ConditionsOsteoarthritis, Knee Osteoarthritis
3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

  1. Article
  2. Exercise-Induced Changes in Knee Cartilage In Vivo: Comparing MRI Sequences.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. MRI-based TSkeletal radiology · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

6 authors.

W WirthInstitute of Anatomy, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria; Chondrometrics GmbH, Ainring, Germany. Electronic address: wolfgang.wirth@pmu.ac.at.
S MaschekInstitute of Anatomy, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria; Chondrometrics GmbH, Ainring, Germany.
F W RoemerDepartment of Radiology, University of Erlangen-Nuremberg, Erlangen, Germany; Department of Radiology, Boston University School of Medicine, Boston, MA, USA.
L SharmaDepartment of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
G N DudaJulius Wolff Institute and Berlin-Brandenburg Center for Regenerative Therapies, Charite - Universitätsmedizin, Berlin, Germany.
F EcksteinInstitute of Anatomy, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria; Chondrometrics GmbH, Ainring, Germany.

Funding

Northwestern University Clinical and Translational Science Institute (NUCATS)UL1TR001422 · NCATS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI D'AQUILA, RICHARD · 2015 to 2023
$56.8M
Resource CoreP30AR072579 · NIAMS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI NAN E ROTHROCK · 2017 to 2026
$8.3M
Long-term Significance of Pre-radiographic Lesions in Persons at Risk for Knee OAR01AR065473 · NIAMS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SHARMA, LEENA · 2014 to 2018
$5.7M
UCSF Core Center for Musculoskeletal Biology and MedicineP30AR066262 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOTZ, JEFFREY C. · 2014 to 2018
$3.0M
Thrust and Meniscal Lesions in Knee OA in the OAIR01AR052918 · NIAMS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SHARMA, LEENA · 2005 to 2009
$2.8M
DATA COORDINATING CENTER FOR THE OSTEOARTHRITIS INITIATIVE-264022258N01AR022258 · NIAMS · UNIVERSITY OF CALIFORNIA SYS OFFICE/PRES · 2003 to 2003
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CLINICAL CENTERS FOR THE OSTEOARTHRITIS INITIATIVE-N01AR22261N01AR022261 · NIAMS · OHIO STATE UNIVERSITY RESEARCH · PI JACKSON, REBECCA · 2002 to 2006
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CLINICAL CENTERS FOR THE OSTEOARTHRITIS INITIATIVE-N01AR22260N01AR022260 · NIAMS · UNIVERSITY OF PITTSBURGH · PI KWOH, KENT · 2002 to 2006
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CLINICAL CENTERS FOR THE OSTEOARTHRITIS INITIATIVE-264022259-264022259N01AR022259 · NIAMS · UNIVERSITY OF MARYLAND AT BALT · PI HOCHBERG, MARC C. · 2002 to 2006
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NCATS NIH HHS UL1 TR001422NIAMS NIH HHS N01 AR022258NIAMS NIH HHS N01 AR022259NIAMS NIH HHS N01 AR022260NIAMS NIH HHS N01 AR022261NIAMS NIH HHS P30 AR066262NIAMS NIH HHS P30 AR072579NIAMS NIH HHS R01 AR052918NIAMS NIH HHS R01 AR065473
6 · The paper itself

Abstract

objectiveTo develop a model of early osteoarthritis, by examining whether radiographically normal knees with contralateral joint space narrowing (JSN), but without contralateral trauma history, display greater longitudinal cartilage composition change (transverse relaxation time; T2) than subjects with bilaterally normal knees.

methods120 radiographically normal knees (Kellgren Lawrence grade [KLG] 0) from the Osteoarthritis Initiative were studied. 60 case knees displayed definite contralateral radiographic knee osteoarthritis (KLG ≥ 2) whereas 60 reference subjects were bilaterally KLG0, and were matched 1:1 to cases based on age, sex, and BMI. All had multi-echo spin-echo MRI acquired at year (Y) 1 and 4 follow-up, with cartilage T2 being determined in superficial and deep cartilage layers across 16 femorotibial subregions. T2 across all regions was considered the primary analytic focus.

resultsOf 60 KLG0 case knees (30 female, age: 65.0 ± 8.8 y, BMI: 27.6 ± 4.4 kg/m

conclusionsRadiographically normal knees with contralateral, non-traumatic JSN represent an applicable model of early osteoarthritis, with deep layer cartilage composition (T2) changing more rapidly than in bilaterally normal knees. CLINICALTRIALS. GOV IDENTIFICATION: NCT00080171.

Indexed as

AgedCartilage, ArticularDisease ProgressionFemaleFollow-Up StudiesHumansKnee JointMagnetic Resonance ImagingMaleMiddle AgedOsteoarthritis, KneeProspective StudiesRadiographyCartilage compositionCartilage T2Cartilage transverse relaxation timeModel of early osteoarthritisMRI

Identifiers

PMID31301430
PMCPMC6803071

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Registered trials

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.