The Natural History of Bone Marrow Lesions in Community-Based Middle-Aged Women Without Clinical Knee Osteoarthritis

Objective Bone marrow lesions (BML) have been implicated in the pathogenesis of osteoarthritis, yet their exact role, etiology, and natural history remain unclear. The aim of this study was to examine the natural history of BML in a healthy population and identify risk factors associated with their...

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Published in:Seminars in arthritis and rheumatism 2009-12, Vol.39 (3), p.213-217
Main Authors: Berry, Patricia A., BBioMedSci (Hons), Davies-Tuck, Miranda L., BBioMedSci (Hons), Wluka, Anita E., MBBS, FRACP, PhD, Hanna, Fahad S., PhD, BSc, Bell, Robin J., MBBS, FAFPHM, PhD, Davis, Susan R., MBBS, FRACP, PhD, Adams, Jenny, RNRM, Cicuttini, Flavia M., MBBS, FRACP, PhD
Format: Article
Language:English
Subjects:
Adult
Aged
Bone Marrow - pathology
Bone Marrow Diseases - complications
Bone Marrow Diseases - epidemiology
Bone Marrow Diseases - pathology
bone marrow lesions
Female
Follow-Up Studies
Humans
Incidence
knee
Longitudinal Studies
Magnetic Resonance Imaging
Middle Aged
osteoarthritis
Osteoarthritis, Knee - epidemiology
Prevalence
Rheumatology
Risk Factors
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Summary:Objective Bone marrow lesions (BML) have been implicated in the pathogenesis of osteoarthritis, yet their exact role, etiology, and natural history remain unclear. The aim of this study was to examine the natural history of BML in a healthy population and identify risk factors associated with their persistence and incidence. Methods One hundred forty-eight healthy middle-aged women had magnetic resonance imaging performed on their dominant knee at baseline and 2 years later to assess the presence, natural history, and risk factors for persistence and incidence of BML. Results Approximately 46% of BML present at baseline completely resolved over 2 years. “Large” BML had the potential to improve, while the majority of “very large” remained stable. In those women with no BML at baseline, approximately 9% developed a BML over 2 years, the majority in the medial compartment. There was a trend toward weight being a risk factor for the development of “very large” BML ( P = 0.08). Conclusions The natural history of BML may be different in healthy persons compared with diseased states. The trend for weight as a risk factor for development of a “very-large” BML suggests there is potential to identify modifiable risk factors for BML in asymptomatic people and warrants further investigation.
ISSN:0049-0172
1532-866X
DOI:10.1016/j.semarthrit.2008.05.003