期刊
ACTA ORTHOPAEDICA
卷 79, 期 5, 页码 631-636出版社
INFORMA HEALTHCARE
DOI: 10.1080/17453670810016641
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- Japanese Investigation Committee for Osteonecrosis of the Femoral Head
Background and purpose It has been suggested that avascular osteonecrosis (AVN) of the femoral head develops early after renal transplantation. We evaluated the relationship between risk of AVN and dose of steroids administered in different time periods. Methods Development of AVN was determined using MRI at 3-6 weeks, 9-12 weeks, 24 weeks, and 12 months after transplantation in 150 patients (96 males). We investigated possible associations between acute rejection reactions, the dose of cyclosporine, tacrolimus use, total steroid dose by the second, fourth, sixth, or eighth weeks after transplantation, and incidence of AVN. Results There was no statistically significant difference between incidence of AVN and presence or absence of an acute rejection reaction. We found a statistically significant association between AVN incidence and the total dose of steroids administered during the first 2 months after transplantation, and there was a dose-response relationship. No other statistically significant associations were found. Interpretation Our findings confirm that the total dose of steroids given within the first 2 months after renal transplantation has a great influence on the incidence of AVN.
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