Effects of combined use of autologous or allogenic micromorselized bone and bone morphogenetic protein (BMP) on healing of segmental rabbit bone defects
邹天彪, Yuliana Long, 付海亮, 候占江, 宋大勇
Abstract
邹天彪, Yuliana Long, 付海亮, 候占江, 宋大勇
Abstract
目的 探讨自体或深低温冷冻同种异体微小颗粒骨复合胶原、骨形态发生蛋白(BMP)修复节段性兔桡骨缺损的效果.方法将兔自体或同种异体骨研磨成微小颗粒,分别与BMP及Ⅰ型胶原复合,并采用兔桡骨干1.5cm缺损的动物模型,通过X线、组织学、骨密度、生物力学等检测手段,与自体微小颗粒骨复合胶原修复节段性骨缺损的疗效比较.结果自体或深低温冷冻同种异体微小颗粒骨复合BMP胶原比自体微小颗粒骨复合胶原成骨效果优良,其中复合BMP组在8周即可使骨缺损修复,髓腔通畅,在骨缺损修复各时期,其成骨速度及成骨量均好于未复合BMP组.结论自体或深低温冷冻同种异体微小颗粒骨复合胶原BMP均可有效地修复节段性骨缺损,两种方法促进新骨形成无明显差异,异体微小颗粒骨复合胶原BMP是良好的骨缺损修复材料。
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目的 探讨自体或深低温冷冻同种异体微小颗粒骨复合胶原、骨形态发生蛋白(BMP)修复节段性兔桡骨缺损的效果.方法将兔自体或同种异体骨研磨成微小颗粒,分别与BMP及Ⅰ型胶原复合,并采用兔桡骨干1.5cm缺损的动物模型,通过X线、组织学、骨密度、生物力学等检测手段,与自体微小颗粒骨复合胶原修复节段性骨缺损的疗效比较.结果自体或深低温冷冻同种异体微小颗粒骨复合BMP胶原比自体微小颗粒骨复合胶原成骨效果优良,其中复合BMP组在8周即可使骨缺损修复,髓腔通畅,在骨缺损修复各时期,其成骨速度及成骨量均好于未复合BMP组.结论自体或深低温冷冻同种异体微小颗粒骨复合胶原BMP均可有效地修复节段性骨缺损,两种方法促进新骨形成无明显差异,异体微小颗粒骨复合胶原BMP是良好的骨缺损修复材料。
Key concepts: Medicine, Bone morphogenetic protein, Bone healing, Bone morphogenetic protein 2, Rabbit (cipher), Bone morphogenetic protein 7, Surgery, Biochemistry