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Journal Articles Osteoarthritis and Cartilage Year : 2010

Advanced hip osteoarthritis: magnetic resonance imaging aspects and histopathology correlations

Abstract

Objectives: To correlate magnetic resonance imaging (MRI) aspects of the femoral head with histological findings in advanced hip osteoarthritis (OA), with special emphasis on bone marrow edema (BME). Methods: MRI was performed in patients with advanced hip OA scheduled for hip arthroplasty. Coronal T1-, fat-suppressed T2-, T1 with gadolinium intravenous injection sequences were obtained on a 1.5T MR-scanner within 1 month before surgery. Coronal MR images corresponding to the ligamentum teres plane were analyzed by two independent readers blinded to histological data. Normal bone marrow, subchondral cyst, subchondral fracture, edema-like, necrosis-like, and necrosis MR patterns were reported on a synthesis scheme. After surgery, the femoral heads specimens were cut through the ligamentum teres plane and histologically analyzed for correlations. Results: Twenty-three femoral heads were analyzed (female 56.5%, mean age 64.5 years). Edema-like MR pattern was correlated with histological (H) edema (Kappa (K): 0.77). Necrosis-like MR pattern was correlated with H fibrosis (K: 0.49) and with H necrosis (K: 0.24). Cyst MR pattern was correlated with H bone cysts (K: 0.58). Necrosis MR pattern corresponded to a mixture of histological lesions. Sensitivity and specificity of MRI varied from 26% to 80% and from 86% to 95% respectively. Conclusion: In advanced hip OA, the so-called ``BME'' MR lesion corresponds to a combination of edema, fibrosis, and necrosis at histopathology. When the classical ``BME'' is more specifically separated into edema-like and necrosis-like MR patterns, MR Imaging and histological findings show substantial agreement, with edema-like MR pattern mainly corresponding to histological edema.
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Dates and versions

hal-01453443 , version 1 (21-03-2017)

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H. Leydet-Quilici, T. Le Corroller, C. Bouvier, R. Giorgi, Jean-Noël Argenson, et al.. Advanced hip osteoarthritis: magnetic resonance imaging aspects and histopathology correlations. Osteoarthritis and Cartilage, 2010, 18 (11), pp.1429-1435. ⟨10.1016/j.joca.2010.08.008⟩. ⟨hal-01453443⟩
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