摘要
目的:通过动物实验评价富血小板纤维蛋白(PRF)联合自体骨髓浓缩物(BMAC)修复骨缺损的早期效果。方法:12~16月龄日本大耳白兔6只,于颅顶制备4个直径为5 mm的圆形骨缺损,随机填入空白(A组)、自体骨沫(B组)、PRF与BMAC混合物(C组),并对PRF行组织学分析。术后6周取材,通过影像学检查及组织学分析评价骨缺损的修复效果。结果:PRF为乳白色纤维蛋白凝胶,具有弹性和韧性,组织学切片可见疏松多孔的网状胶原纤维,基底部网络少量白细胞。各组骨缺损均未见炎症反应,新骨生成率分别为:A组(7.64±1.02)%,B组(12.94±0.81)%,C组(37.19±1.26)%,C组新骨生成率显著高于A、B组(P<0.05)。结论:PRF联合BMAC可以显著加快新骨再生的速度,促进兔颅骨缺损的修复。
Objective： To assess the initial effects of platelet-rich fi brin（PRF） in conjunction with bone marrow aspirate concentrate（BMAC） on reconstruction of bone defect. Methods： Four bone defects of 5-mm in diameter were performed in the calvaria of 6 rabbits. These defects were randomly filled with blood clot（group A）, autogenous bone（group B）, PRF and BMAC（group C）. Meanwhile, PRF was collected for histological observation. Animals were sacrificed 6 weeks later, and bone samples were harvested for histological observation and statistical analysis. Results： PRF was milk white fi brin glue with elasticity and toughness. The loose and porous three dimensional network structure and white blood cells at the bottom of PRF could be seen in the histological sections. The percentage of new bone formed in each group was 7.64%±1.02%（group A）, 12.94%±0.81%（group B）, 37.19%±1.26%（group C）, respectively. Group C showed a statistically greater amount of new bone formation compared with group A and group B（P〈0.05）. Conclusion： PRF mixed with BMAC couldaccelerate the regeneration of new bone to repair the rabbit calvarial defect.
作者
杨颖
刘国
刘传通
金琼
朱飞
l YANG Ying;LIU Guo;LIU Chuantong;JIN Qiong;ZHU Fei(School of Stomatology,Wenzhou Medical University,Wenzhou,32502)
出处
《温州医科大学学报》
CAS
2018年第5期375-378,共4页
Journal of Wenzhou Medical University
基金
浙江省教育厅科研基金资助项目(Y201431637)
关键词
富血小板纤维蛋白
自体骨髓浓缩物
骨再生
platelet-rich fbrin
bone marrow aspirate concentrate
bone regeneration
