Evidence map›Paper›PMID 30802496›Full record

Observational studyOsteoarthritis and cartilage2019

Spatial distribution and temporal progression of T2 relaxation time values in knee cartilage prior to the onset of cartilage lesions - data from the Osteoarthritis Initiative (OAI).

M Kretzschmar, M C Nevitt, B J Schwaiger, G B Joseph, C E McCulloch, T M Link

Abstract readMulticenter StudyObservational 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. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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.

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

26 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Improving Accuracy and Reproducibility of Cartilage TJournal of magnetic resonance imaging : JMRI · 2025
    Article
  6. Article
  7. Reproducibility of Quantitative Double-Echo Steady-State TJournal of magnetic resonance imaging : JMRI · 2025
    Article
  8. Review
  9. Review
  10. Article
  11. MRI-based TSkeletal radiology · 2023
    Review
  12. T2 mapping magnetic resonance imaging of cartilage in hemophilia.Research and practice in thrombosis and haemostasis · 2023
    Article
  13. Article
  14. Article
  15. Early knee OA definition-what do we know at this stage? An imaging perspective.Therapeutic advances in musculoskeletal disease · 2023
    Review
  16. Predicting osteoarthritis onset and progression with 3D texture analysis of cartilage MRI DESS: 6-Year data from osteoarthritis initiative.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022
    Article
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

M KretzschmarMusculoskeletal and Quantitative Imaging Group (MQIR), Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA. Electronic address: martin.kretzschmar@usb.ch.
M C NevittDepartment of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA.
B J SchwaigerMusculoskeletal and Quantitative Imaging Group (MQIR), Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA.
G B JosephMusculoskeletal and Quantitative Imaging Group (MQIR), Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA.
C E McCullochDepartment of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA.
T M LinkMusculoskeletal and Quantitative Imaging Group (MQIR), Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA.

Funding

Translation of Quantitative Imaging in OsteoarthritisP50AR060752 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SOUZA, RICHARD BRIAN · 2011 to 2015
$6.2M
UCSF Core Center for Musculoskeletal Biology and MedicineP30AR066262 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOTZ, JEFFREY C. · 2014 to 2018
$3.0M
Impact of Weight loss on Knee Joint Biochemical and Structural DegenerationR01AR064771 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LINK, THOMAS M · 2014 to 2019
$1.6M
T2 Relaxation Time of Knee Cartilage in the OAI Incidence SubcohortU01AR059507 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LINK, THOMAS M · 2010 to 2012
$499k
NIAMS NIH HHS P30 AR066262NIAMS NIH HHS P50 AR060752NIAMS NIH HHS R01 AR064771NIAMS NIH HHS U01 AR059507
6 · The paper itself

Abstract

purposeTo investigate compositional changes of knee cartilage at the site of newly appearing cartilage lesions and the surrounding cartilage 1-4 years prior to lesion onset using quantitative T2-measurements.

methodsFifty-seven cartilage plates with newly appearing cartilage lesions from 45 knees (cases) and 52 plates from 26 control knees from the Osteoarthritis Initiative (OAI) cohort (controls) were evaluated. Using MRI T2-mapping, composition of local (the site of future lesions) and surrounding cartilage (remainder of the cartilage plate) was assessed 1-4 years prior to lesion onset. Analogous cartilage ROIs in control plates without cartilage lesions were assessed over 1-4 years. Mixed models were used to compare T2-means and change rates between local and surrounding cartilage within cases and controls, and to compare change rates in local and surrounding cartilage between cases and controls, adjusting for covariates.

resultsFour years prior to lesion onset, we found that local cartilage ROIs had higher T2-values compared to the surrounding cartilage. No such differences were found in control plates. In cases mean local T2-values were persistantly elevated compared to the surrounding cartilage prior to lesion onset reaching significance 1 year prior (+2.94 ms, p = 0.012). T2-values of the surrounding cartilage were also persistantly higher in cases compared to controls, reaching significance 2 years prior to lesion onset (+3.61 ms, p = 0.003).

conclusionThe findings of our study support the concept of compositional cartilage changes as a mechanism for cartilage degradation and that both diffuse and focal changes of cartilage composition within a cartilage plate precede the development of cartilage lesions.

Indexed as

AgedCartilage, ArticularDisease ProgressionFemaleHumansKnee JointLongitudinal StudiesMagnetic Resonance ImagingMaleMiddle AgedOsteoarthritis, KneeRadiographySeverity of Illness IndexCartilageKneeMRIOsteoarthritisT2 mapping

Identifiers

PMID30802496
PMCPMC6482329

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.