成骨细胞和bFGF植入修复骨缺损的实验和临床应用研究  

THE EXPERIMENTAL AND CLINICAL STUDY OF REPAIR OF BONE DEFECT BY MEANS OF TRANSPLANTING OSTEOBLAST AND BASIC FIBROBLAST GROWTH FACTOR

作　　者：丁焕文[1] 黄山东[1] 刘少喻[1] 区锦华[1] 苏增贵[1] 尹庆水[1] 侯之启[1] 

机构地区：[1]广州军区广州总医院

出　　处：《解放军医学杂志》2001年第11期804-807,共4页Medical Journal of Chinese People's Liberation Army

基　　金：全军医学科研"十五"计划青年基金项目 (编号 96Q0 17);广东省自然科学基金 (编号 990 0 0 6 )资助课题

摘　　要：将同种异体胎兔成骨细胞按不同浓度 (10 7、10 6、10 5、10 4 /ml)植入成年新西兰兔桡骨 1cm缺损区域 ,观察骨缺损修复过程 ,以研究成骨细胞于复合bFGF三维凝胶载体中植入的方法、最佳有效浓度及其促进骨再生效果 ;并植入胎儿成骨细胞和bFGF于骨不连区域 ,观察其临床疗效。结果发现 ,按 10 7、10 6、10 5、10 4 /ml植入成骨细胞组和对照组骨缺损桥接率于术后 4周为 40 %、6 5 %、31 2 5 %、5 5 5 %、5 % ,植入 8周为 41 6 7%、75 %、37 5 %、10 %、8 33 % ;按 10 7、10 6、10 5、10 4 /ml植入成骨细胞组和对照组骨缺损处骨密度于术后 6周为 (0 112± 0 0 18)、(0 15 9± 0 0 33)、(0 12 2± 0 0 39)、(0 0 6 6± 0 0 0 2 )、(0 0 6 7± 0 0 0 9) ,植入 8周骨密度为 (0 15 0± 0 0 5 9)、(0 173±0 0 41)、(0 145± 0 0 2 3)、(0 10 3± 0 0 2 3)、(0 10 2± 0 0 33) ;扫描电镜观察成骨细胞植入 3周时有骨陷窝形成 ,植入5周时骨陷窝壁完全钙化 ;临床应用于 10例骨不连患者 ,经 3～ 12个月随访 ,均愈合。研究表明成骨细胞按 10 7、10 6、10 5/ml浓度植入均有明显的促新骨形成、促骨缺损修复的效果 ,成骨细胞于三维凝胶中植入的最佳细胞浓度为 10 6/ml;胎儿成骨细胞移植可临床应用于?To study the method and the optimal quantity of osteoblast transplantation to stimulate bone regeneration by transplanting 6～8 day old cultured osteoblasts and bFGF, together with osteoblast free calvaria of fetal rabbits into the defects of the rabbit radius. The fibroblasts were embedded in the type Ⅰcollagen in the concentrations of 10 7 ,10 6 ,10 5 , 10 4 /ml. Bone repair was evaluated by X ray, bone density,and scanning electron microscopy. Bone union ratio of the radius with transplantation of 10 7 ,10 6 ,10 5 , 10 4 /ml osteoblasts was 40%, 65%, 31 25%, 5 55% respectively at 4 weeks after transplantation, and 41 67%, 75%, 37 5%, 10% respectively at 8 weeks after transplantation. Bone density of radius defect with transplantation of 10 7 , 10 6 , 10 5 , 10 4 /ml osteoblasts was (0 112±0 018), (0 159±0 033), (0 122±0 039), (0 066±0 002) respectively at 6 weeks after transplantation and (0 150±0 059), (0 173±0 041), (0 145±0 023), (0 103±0 023) respectively at 8 weeks after transplantation, In 10 cases of bone non union, union was achieved by transplanting fetal osteoblast and basic fibroblast growth factor. This finding indicated that that transplantation of fetal osteoblasts could stimulate bone defect repair. The optimal concentration of osteoblasts implant was 10 6 cells /ml. It might be used in the treatment of bone non union.

关 键 词：成骨细胞 碱性成纤维细胞生长因子 骨缺损 骨生成 BFGF 

分 类 号：R683[医药卫生—骨科学]