J Orthop Surg Res:CSA处理的TPS表面上共价结合的BMP-2可快速促进骨整合

2018-09-07 MedSci MedSci原创

骨形态发生蛋白作为骨整合因子起着重要作用,广泛用于整形外科研究和外科手术,以增强植体的骨整合潜力。本研究旨在研究rhBMP-2在不同术后时间使用铬硫酸(CSA)进行特殊修饰后,对岩石等离子体喷雾(TPS)层的影响,包括骨传导和骨诱导。 将27只Göttinger小型猪分成3组,每组9只,在其股骨的干骺端部分分别植入四个哑铃形植体。植体表面为TPS表面(CSA组)且没有CSA处理(TPS组)。

骨形态发生蛋白作为骨整合因子起着重要作用,广泛用于整形外科研究和外科手术,以增强植体的骨整合潜力。本研究旨在研究rhBMP-2在不同术后时间使用铬硫酸(CSA)进行特殊修饰后,对岩石等离子体喷雾(TPS)层的影响,包括骨传导和骨诱导。

将27只Göttinger小型猪分成3组,每组9只,在其股骨的干骺端部分分别植入四个哑铃形植体。植体表面为TPS表面(CSA组)且没有CSA处理(TPS组)。前者接受了另外一层BMP-2(BMP-2组)。为了评估4周,8周和12周的愈合期后的骨整合,根据Masson-Goldner对染色后的未脱钙样本进行组织形态学测定。在间隙模型中使用具有不同荧光染料的活体标记。进行了重复测量设计的多变量分析以进行统计评估。

结果,三因素ANOVA中观察到统计学差异。BMP-2和TPS组之间的比较(双因素方差分析)显示骨诱导(类骨质体积)方面存在明显地统计学差异,且BMP-2组骨传导(骨和骨样生长)明显更好。在BMP-2和CSA(双向ANOVA)之间的成对比较中,没有发生统计学差异。四环素,钙黄绿素和二甲酚橙进行的活体染色显示两组之间没有明显差异。

综上所述,该研究结果表明,在CSA处理的TPS表面上共价结合的BMP-2在12周的观察期内对大动物骨间隙愈合模型中的骨整合具有正面影响。

原始出处:

Manuel Lingner, Roland Seidling, et al., Osseointegrative effect of rhBMP-2 covalently bound on a titan-plasma-spray-surface after modification with chromosulfuric acid in a large animal bone gap-healing model with the Göttingen minipig. J Orthop Surg Res. 2018; 13: 219.

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    2019-05-09 HNYYM
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