Local administration of zoledronic acid prevents traumatic osteonecrosis of the femoral head in rat model

作者：Jun Zhao, Yue Tian, Shibi Lu, Haoye Meng, Qiuxia Lin, Haiyang Ma, Guangbo Liu, Li Huo, Qiang Lu, Aiyuan Wang, Wenjing Xu, Jing Feng, Yiqun Wan, Sida Liao, Xuefeng Zhou, Jiang Peng · 发表于：Journal of Orthopaedic Translation · 年份：2021 · DOI：10.1016/j.jot.2020.08.005 · 被引用次数：14 · 研究领域：Bone and Joint Diseases、Hip disorders and treatments、Orthopaedic implants and arthroplasty

BACKGROUND: Osteonecrosis of the femoral head (ONFH) is a refractory disease due to its unclear pathomechanism. Neither conservative treatment nor surgical treatment during the early stage of ONFH achieves satisfactory results. Therefore, this study aims to explore the available evidence on the effect of zoledronic acid on early-stage ONFH. METHODS: The blood supply to the femoral head of animals in the model group and zoledronic acid-treated group was interrupted via a surgical procedure, and zoledronic acid was then locally administered to the femoral head. Four weeks after surgery, all the hips were harvested and evaluated by micro-CT and histopathology(H&E staining, TRAP staining, Toluidine blue staining and masson staining). RESULTS: The values of BMD, BS/BV and Tb.Th in the Normal group and zoledronic acid-treated group were significantly higher than those in the model group and NS group (p < 0.05). The outcome of H&E staining, Toluidine blue staining and masson staining were consistent with that of micro-CT. CONCLUSION: The local administration of zoledronic acid in the femoral head had positive effects on the bone structure of the femoral head in a modified rat model of traumatic ONFH and offered a promising therapeutic strategy during the early stage of ONFH. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE: This article could provide a choice for treating patients who have osteonecrosis of femora head and can be the basic research for advanced development over this disea...