李朋;候明;朱智奇;王德桂;林学扬;

• 1:深圳市龙岗区人民医院骨科

摘要(Abstract)：

[目的]观察SRY相关高迁移组box基因9蛋白(Sox9)及结缔组织生长因子(CTGF)、骨形态发生蛋白2(BMP-2)在促进腱骨结合处愈合的作用。[方法]72只成年新西兰大白兔随机分为Sox9组、CTGF组、BMP-2组及对照组。Sox9组、CTGF组、BMP-2组分别于骨与肌腱的缝合处注入浓度为200 ng/ml的Sox9、CTGF及BMP-2各2 ml,对照组只手术但不注射任何材料。建立动物模型后对四组行动物实验并分别于术后4、8及12周行组织学及生物力学检查,统计学分析结果。[结果]术后第4、8、12周,Sox9组、CTGF组的组织学愈合情况均好于对照组,生物力学分析中Sox9组、CTGF组腱骨愈合界面的横截面积均低于对照组,拉断负荷及极限拉应力均高于对照组(P<0.05),而BMP-2组各项指标均与对照组差异无统计学意义。[结论]Sox9以及CTGF组能够促进腱骨结合处的早期愈合,并能够增加其生物力学强度,而BMP-2对骨肌腱结合部位愈合并无明显作用。

关键词(KeyWords)： Sox9;CTGF;BMP-2;腱骨结合

Abstract:

Keywords:

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作者(Author): 李朋;候明;朱智奇;王德桂;林学扬;

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参考文献(References)：

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