Evidence map›Paper›PMID 23102493›Full record

Trial reportJournal of biomechanics2013

Diurnal variations in articular cartilage thickness and strain in the human knee.

Jeremy L Coleman, Margaret R Widmyer, Holly A Leddy, Gangadhar M Utturkar, Charles E Spritzer, Claude T Moorman, Farshid Guilak, Louis E DeFrate

Abstract readClinical Trial
In one paragraph

Trial report in Journal of biomechanics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
5.8field-weighted citation impact, top 4% 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

81 citing papers in PubMed, 131 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Circadian clock communication during homeostasis and ageing.Nature reviews. Molecular cell biology · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Walking recovers cartilage compressive strain in vivo.Osteoarthritis and cartilage open · 2024
    Article
  15. Article
  16. Article
  17. Femoral cartilage ultrasound echo-intensity is a valid measure of cartilage composition.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2024
    Article
  18. Influence of running on femoroacetabular joint bone-to-bone distances.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2024
    Article
  19. Article
  20. Article

21 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 1 country.

Jeremy L ColemanDepartment of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710, USA.
Margaret R Widmyer
Holly A Leddy
Gangadhar M Utturkar
Charles E Spritzer
Claude T Moorman
Farshid Guilak
Louis E DeFrate
Duke Medical Center · USDuke University · USDuke University Hospital · US

Funding

Thermally-Triggered Intra-articular Drug Delivery for OAP01AR050245 · NIAMS · DUKE UNIVERSITY · PI GUILAK, FARSHID · 2003 to 2012
$11.5M
VISCOELASTIC PROPERTIES OF NORMAL AND OA CHONDRONSR01AG015768 · NIA · WASHINGTON UNIVERSITY · PI GUILAK, FARSHID · 1998 to 2022
$7.7M
Mechanical and Osmotic Signaling in ChondrocytesR01AR048182 · NIAMS · DUKE UNIVERSITY · PI GUILAK, FARSHID · 2003 to 2013
$3.0M
Intrinsic Repair of the Knee MeniscusR01AR048852 · NIAMS · DUKE UNIVERSITY · PI GUILAK, FARSHID · 2007 to 2011
$1.4M
The In Vivo Biomechanics of Lateral Ankle Ligament Injury and ReconstructionR03AR055659 · NIAMS · DUKE UNIVERSITY · PI DEFRATE, LOUIS E. · 2008 to 2010
$233k
NIAMS NIH HHS AR055659NIAMS NIH HHS AR48182NIAMS NIH HHS AR48852NIAMS NIH HHS AR50245NIAMS NIH HHS P01 AR050245NIAMS NIH HHS R01 AR048182NIAMS NIH HHS R01 AR048852NIAMS NIH HHS R03 AR055659NIA NIH HHS AG15768NIA NIH HHS R01 AG015768
6 · The paper itself

Abstract

Due to the biphasic viscoelastic nature of cartilage, joint loading may result in deformations that require times on the order of hours to fully recover. Thus, cartilaginous tissues may exhibit cumulative strain over the course of each day. The goal of this study was to assess the magnitude and spatial distribution of strain in the articular cartilage of the knee with daily activity. Magnetic resonance (MR) images of 10 asymptomatic subjects (six males and four females) with mean age of 29 years were obtained at 8:00 AM and 4:00 PM on the same day using a 3T magnet. These images were used to create 3D models of the femur, tibia, and patella from which cartilage thickness distributions were quantified. Cartilage thickness generally decreased from AM to PM in all areas except the patellofemoral groove and was associated with significant compressive strains in the medial condyle and tibial plateau. From AM to PM, cartilage of the medial tibial plateau exhibited a compressive strain of -5.1±1.0% (mean±SEM) averaged over all locations, while strains in the lateral plateau were slightly lower (-3.1±0.6%). Femoral cartilage showed an average strain of -1.9±0.6%. The findings of this study show that human knee cartilage undergoes diurnal changes in strain that vary with site in the joint. Since abnormal joint loading can be detrimental to cartilage homeostasis, these data provide a baseline for future studies investigating the effects of altered biomechanics on diurnal cartilage strains and cartilage physiology.

Indexed as

Activities of Daily LivingAdultCartilage, ArticularCircadian RhythmFemaleHumansKnee JointMaleMiddle AgedWeight-Bearing

Identifiers

PMID23102493
PMCPMC3552039
OpenAlexW2083711839

What OpenQuestion holds

Textmetadata
LicenceTDM
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.