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  • Title: [Pathological changes of the blood vessels in rabbit femoral head with glucocorticoid-induced necrosis].
    Author: Hu ZM, Wang HB, Zhou MQ, Yao XS, Ma L, Wang XN.
    Journal: Nan Fang Yi Ke Da Xue Xue Bao; 2006 Jun; 26(6):785-7. PubMed ID: 16793601.
    Abstract:
    OBJECTIVE: To observe the pathological changes in the blood vessels in rabbit femoral head with glucocorticoid-induced necrosis and investigate the pathogenesis of glucocorticoid-induced osteonecrosis. METHODS: Twenty New Zealand white rabbits were randomly divided into two groups, namely group A. which was injected with horse serum and prednisone and group B as the control group. Chinese ink was injected into the femoral cavity of the rabbits to observe the blood vessels in the femoral head under optical microscope and the femoral head was examined histopathologically. RESULTS: Compared with the normal control group, the rabbits in group A had significantly decreased number of perfused vessels, which was featured by defective perfusion, osteocytie pyknosis or necrosis, increase of empty ostoocyte lacunae and fat cells, decrease of hematopoietic tissue, and blood vessel occlusion. CONCLUSION: Vascular occlusion and vasculitis due to glucocorticoid treatment may cause avascular necrosis of the femoral head.
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