邓立庆;谭振;谢小伟;康鹏德;

• 1:四川大学华西医院西藏成办分院骨科
• 2:四川大学华西医院骨科

摘要(Abstract)：

[目的]研究含rh BMP-2生物活性骨修复山羊胫骨缺损后的生物学性能和新成骨特点。评价其局部成骨活性及修复骨缺损的能力,为临床骨缺损的治疗提供理论和实验依据。[方法]24只健康成年山羊,雌雄不限,体重20~25 kg,随机分为4组,每组6只,于双侧胫骨内侧正中,距平台下约20mm,制作成直径为10mm的圆形胫骨骨缺损模型,分组植入材料,A组:含rh BMP-2活性生物骨;B组:自体髂骨;C组:硫酸钙;D组:空白对照组。分别于术后4、8、12周时进行影像学及组织学检查以观察和评价骨缺损修复情况。[结果]影像学显示:术后4周可见含rh BMP-2活性生物骨开始降解吸收,骨缺损区有新生骨形成;8周可见缺损区骨痂性愈合;12周可见骨愈合,髓腔再通,皮质骨增厚。组织学显示:4周时植骨区出现大量骨小梁,材料开始降解;8周可见骨小梁融合成片,材料大部分降解;12周时骨缺损基本修复,可见板层骨,骨髓腔再通,材料被完全降解、吸收。[结论]含rh BMP-2活性生物骨具有较强的诱导成骨活性和修复骨缺损作用,具有良好的临床应用前景。

关键词(KeyWords)： rhBMP-2;牛松质骨;山羊;骨缺损

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 邓立庆;谭振;谢小伟;康鹏德;

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参考文献(References)：

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