Infrapatellar fat pad abnormalities are associated with a higher inflammatory synovial fluid cytokine profile in young adults following ACL tear.
Anterior cruciate ligament tear
Cartilage damage
Inflammation
Magnetic resonance imaging
Matrix metalloproteinases
Post-traumatic osteoarthritis (PTOA)
T1ρ relaxation time
T2 relaxation time
Journal
Osteoarthritis and cartilage
ISSN: 1522-9653
Titre abrégé: Osteoarthritis Cartilage
Pays: England
ID NLM: 9305697
Informations de publication
Date de publication:
01 2020
01 2020
Historique:
received:
28
11
2018
revised:
08
08
2019
accepted:
03
09
2019
pubmed:
19
9
2019
medline:
7
2
2021
entrez:
19
9
2019
Statut:
ppublish
Résumé
To evaluate the degree of knee fat pad abnormalities after acute anterior cruciate ligament (ACL) tear via magnetic resonance fat pad scoring and to assess cross-sectionally its association with synovial fluid biomarkers and with early cartilage damage as quantified via T1ρ and T2 relaxation time measurements. 26 patients with acute ACL tears underwent 3T MR scanning of the injured knee prior to ACL reconstruction. The presence and degree of abnormalities of the infrapatellar (IPFP) and the suprapatellar (SPFP) fat pads were scored on MR images along with grading of effusion-synovitis and synovial proliferations. Knee cartilage composition was assessed by 3T MR T1ρ and T2 mapping in six knee compartments. We quantified concentrations of 20 biomarkers in synovial fluid aspirated at the time of ACL reconstruction. Spearman rank partial correlations with adjustments for age and gender were employed to evaluate correlations of MR, particularly cartilage composition and fat pad abnormalities, and biomarker data. The degree of IPFP abnormality correlated positively with the synovial levels of the inflammatory cytokine markers IFN-γ (ρ This exploratory study suggests that acute ACL rupture can be associated with damage to knee tissues such as the inferior fat pad of the knee. Such fat pad injury could be partially responsible for the apparent post-injury pro-inflammatory response noted in ACL-injured individuals. However, future longitudinal studies are needed to link ACL-rupture associated fat pad injury with important patient outcomes such as the development of posttraumatic osteoarthritis.
Identifiants
pubmed: 31526878
pii: S1063-4584(19)31206-3
doi: 10.1016/j.joca.2019.09.001
pmc: PMC6935420
mid: NIHMS1542328
pii:
doi:
Substances chimiques
Cytokines
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
82-91Subventions
Organisme : NICHD NIH HHS
ID : K12 HD051958
Pays : United States
Organisme : NIAMS NIH HHS
ID : P30 AR066262
Pays : United States
Organisme : NIAMS NIH HHS
ID : P30 AR075055
Pays : United States
Organisme : NIAMS NIH HHS
ID : P50 AR060752
Pays : United States
Informations de copyright
Copyright © 2019 Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved.
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