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Associations between systemic bone mineral density and early knee cartilage changes in middle-aged adults without clinical knee disease: a prospective cohort study

Citation

Teichtahl, AJ and Wang, Y and Wluka, AE and Strauss, BJ and Proietto, J and Dixon, JB and Jones, G and Cicuttini, FM, Associations between systemic bone mineral density and early knee cartilage changes in middle-aged adults without clinical knee disease: a prospective cohort study, Arthritis Research and Therapy, 19 Article 98. ISSN 1478-6362 (2017) [Refereed Article]


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© The Author(s). 2017 Licensed under Creative Commons Attribution 4.0 International License (http//creativecommons.org/licenses/by/4.0/)

DOI: doi:10.1186/s13075-017-1314-0

Abstract

Background: Osteoarthritis has a high prevalence in people with high bone mineral density (BMD). Nevertheless, whether high systemic BMD predates early structural features of knee osteoarthritis is unclear. This study examined the association between systemic BMD and knee cartilage defect progression and cartilage volume loss in middle-aged people without clinical knee disease.

Methods: Adults (n = 153) aged 25-60 years had total body, lumbar spine, and total hip BMD assessed by dual-energy X-ray absorptiometry at baseline (2005-2008), and tibial cartilage volume and tibiofemoral cartilage defects assessed by magnetic resonance imaging at baseline and follow up (2008-2010).

Results: Higher spine BMD was associated with increased risk for progression of medial (OR = 1.45, 95% CI 1.10, 1.91) and lateral (OR = 1.30, 95% CI 1.00, 1.67) tibiofemoral cartilage defects. Total hip BMD was also positively associated with the progression of medial (OR = 1.63, 95% CI 1.10, 2.41) and lateral (OR = 1.53, 95% CI 1.08, 2.18) tibiofemoral cartilage defects. Greater total body, spine, and total hip BMD were associated with increased rate of lateral tibial cartilage volume loss (for every 1 g/10 cm2 increase in total body BMD: B = 0.44%, 95% CI 0.17%, 0.71%; spine BMD: 0.17%, 95% CI 0.04%, 0.30%; total hip BMD: 0.29%, 95% CI 0.13%, 0.45%), with no significant associations for medial tibial cartilage volume loss.

Conclusion: In middle-aged people without clinical knee disease, higher systemic BMD was associated with increased early knee cartilage damage. Further work is needed to clarify the effect of systemic BMD at different stages of the pathway from health through to disease in knee osteoarthritis, as new therapies targeting bone are developed for the management of knee osteoarthritis.

Item Details

Item Type:Refereed Article
Keywords:bone mineral density, cartilage volume, cartilage defects, osteoarthritis, knee
Research Division:Biomedical and Clinical Sciences
Research Group:Clinical sciences
Research Field:Rheumatology and arthritis
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Jones, G (Professor Graeme Jones)
ID Code:124285
Year Published:2017
Web of Science® Times Cited:13
Deposited By:Menzies Institute for Medical Research
Deposited On:2018-02-16
Last Modified:2018-07-20
Downloads:93 View Download Statistics

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