Synovitis and the risk of knee osteoarthritis: the MOST Study

D.T Felson; J Niu; T Neogi; J Goggins; M.C Nevitt; F Roemer; J Torner; C.E Lewis; A Guermazi; MOST Investigators Group

doi:10.1016/j.joca.2015.09.013

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Synovitis and the risk of knee osteoarthritis: the MOST Study

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Synovitis and the risk of knee osteoarthritis: the MOST Study

D.T Felson, J Niu, T Neogi, J Goggins, M.C Nevitt, F Roemer, J Torner, C.E Lewis, A Guermazi and MOST Investigators Group

Osteoarthritis and cartilage, Vol.24(3), pp.458-464

03/2016

DOI: 10.1016/j.joca.2015.09.013

PMCID: PMC4761323

PMID: 26432512

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Abstract

To identify the independent relation of synovitis with incident radiographic knee osteoarthritis (OA) after adjusting for other structural factors known to cause synovitis. We examined MRIs from knees that developed incident radiographic OA from the Multicenter Osteoarthritis Study (MOST) and compared these case knees with controls that did not develop OA. We examined baseline MRIs for knees developing OA at any time up to 84 months follow-up. We scored lesions in cartilage, meniscus, bone marrow and synovitis. Synovitis scores were summed (0–9) across three regions, suprapatellar, infrapatellar and intercondylar region, each of which was scored 0–3. After bivariate analyses examining each factor's association with incidence, we carried out multivariable regression analyses adjusting for age, sex, BMI, alignment and cartilage and meniscal damage. We studied 239 case and 731 control knees. In bivariate analyses, cartilage lesions, meniscal damage, synovitis and bone marrow lesions were all risk factors for OA. After multivariable analyses, synovitis was associated with incident OA. A higher synovitis score increased the risk of incident OA (adjusted OR per unit increase 1.1; (95% CI 1.0, 1.2, P = .02)), but increased risk was associated only with synovitis scores of ≥3 (adjusted OR 1.6; 95% CI 1.2, 2.1, P = .003). Synovitis, especially when there is a substantial volume within the knee, is an independent cause of OA.

Knee osteoarthritis

Magnetic resonance imaging

Cohort studies

Incidence

Details

Title: Subtitle: Synovitis and the risk of knee osteoarthritis: the MOST Study
Creators: D.T Felson - Clinical Epidemiology Research & Training Unit, Boston University School of Medicine, Boston, MA, USA
J Niu - Clinical Epidemiology Research & Training Unit, Boston University School of Medicine, Boston, MA, USA
T Neogi - Clinical Epidemiology Research & Training Unit, Boston University School of Medicine, Boston, MA, USA
J Goggins - Clinical Epidemiology Research & Training Unit, Boston University School of Medicine, Boston, MA, USA
M.C Nevitt - Division of Clinical Trials & Multicenter Studies, University of California at San Francisco, San Francisco, CA, USA
F Roemer - Quantitative Imaging Center, Boston University School of Medicine, Boston, MA, USA
J Torner - Department of Epidemiology, The University of Iowa, Iowa City, IA, USA
C.E Lewis - Division of Preventive Medicine, University of Alabama School of Medicine, Birmingham, AL, USA
A Guermazi - Quantitative Imaging Center, Boston University School of Medicine, Boston, MA, USA
MOST Investigators Group
Resource Type: Journal article
Publication Details: Osteoarthritis and cartilage, Vol.24(3), pp.458-464
DOI: 10.1016/j.joca.2015.09.013
PMID: 26432512
PMCID: PMC4761323
NLM abbreviation: Osteoarthritis Cartilage
ISSN: 1063-4584
eISSN: 1522-9653
Publisher: Elsevier Ltd
Language: English
Date published: 03/2016
Academic Unit: Epidemiology; Surgery; Injury Prevention Research Center; Neurosurgery
Record Identifier: 9983995155202771

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