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Factors association with hip cartilage volume measured by magnetic resonance imaging. The Tasmanian Older Adult Cohort Study

Citation

Zhai, G and Cicuttini, F and Srikanth, V and Cooley, HM and Ding, C and Jones, G, Factors association with hip cartilage volume measured by magnetic resonance imaging. The Tasmanian Older Adult Cohort Study, Arthritis & Rheumatism, 52, (4) pp. 1069-1076. ISSN 0004-3591 (2005) [Refereed Article]

DOI: doi:10.1002/art.20964

Abstract

Objective. To compare associations between anthropometric and lifestyle factors and femoral head cartilage volume/thickness and radiographic features of osteoarthritis (OA) and to provide evidence of construct validity for magnetic resonance imaging (MRI) assessment of femoral cartilage volume and thickness. Methods. We studied a cross-sectional sample of 151 randomly selected subjects (79 men, 72 women; mean age 63 years) from the Tasmanian Older Adult Cohort Study. A sagittal T1-weighted fat-suppression MRI scan of the right hip was performed to determine femoral head cartilage volume, cartilage thickness, and size. An anteroposterior radiograph of the pelvis with weight bearing was performed and scored for radiographic evidence of OA in the right hip. Other factors measured were height, weight, leg strength, serum vitamin D levels, and bone mineral density. Results. Hip cartilage volume was significantly associated with female sex, body mass index, and femoral head size, whereas hip cartilage thickness was significantly associated only with the size of the femoral head. Only female sex was significantly associated with the total radiographic OA score and the joint space narrowing (JSN) score, but not the osteophyte score. Radiographic JSN of the hip, especially axial JSN (but not osteophytes), was significantly correlated with hip cartilage volume and thickness. Conclusion. Femoral head cartilage volume and thickness have modest but significant construct validity when correlated with radiographic findings. Furthermore, the generally stronger associations with volume compared with radiographic OA suggest that MRI may be superior at identifying risk factors for hip OA. © 2005, American College of Rheumatology.

Item Details

Item Type:Refereed Article
Research Division:Medical and Health Sciences
Research Group:Public Health and Health Services
Research Field:Epidemiology
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Skeletal System and Disorders (incl. Arthritis)
Author:Zhai, G (Dr Guangju Zhai)
Author:Srikanth, V (Dr Velandai Srikanth)
Author:Cooley, HM (Dr Helen Cooley)
Author:Ding, C (Professor Chang-Hai Ding)
Author:Jones, G (Professor Graeme Jones)
ID Code:37242
Year Published:2005
Web of Science® Times Cited:20
Deposited By:Menzies Institute for Medical Research
Deposited On:2005-08-01
Last Modified:2006-04-05
Downloads:0

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