不同浓度富血小板血浆与前交叉韧带重建后的隧道扩大.doc
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不同浓度富血小板血浆与前交叉韧带重建后的隧道扩大*★
李洪秋,阿 良,赵忠海,东黎阳(沈阳医学院附属中心医院,辽宁省沈阳市 110024)
文章亮点:
课题创新性的采用不同浓度富血小板血浆对兔骨隧道扩大的影响进行了动物实验观察。结果显示, 富血小板血浆能够促进兔前交叉韧带重建后腱-骨界面骨密度的提高,有效预防骨隧道的扩大;并通过实验筛选到富血小板血浆浓度10 mg为佳。
关键词:
组织构建;肌肉肌腱韧带组织构建;骨与关节植入物;富血小板血浆;前交叉韧带;腱骨愈合;骨隧道扩大;其他基金
主题词:
富血小板血浆;前交叉韧带;肌腱切断术
基金资助:
沈阳医学院课题*;沈阳市卫生局课题(2011年青年基金)*
摘要
背景:富血小板血浆内含有的生长因子能够促进骨-腱愈合,从而减少了前交叉韧带重建后骨隧道扩大的发生;不同浓度的富血小板血浆对骨隧道的扩大有一定的影响,但是目前尚不清楚何种浓度更佳。
目的:观察富血小板血浆对前交叉韧带重建后隧道扩大的影响。
方法:将20只新西兰大白兔,参照Martinek等的方法进行兔的双侧前交叉韧带重建。在一侧肢体的肌腱移植物给予10 mg富血小板血浆凝胶预处理作为观察组,对侧肢体移植物给予5 mg富血小板血浆凝胶预处理为对照组。处理后12周进行影像学观察以及测量骨隧道的宽度,计算隧道扩大率。
结果与结论:在前交叉韧带重建后的8周、12周的时间点上,10 mg富血小板血浆组隧道扩大的宽度小于5 mg富血小板血浆组(P 0.05);10 mg富血小板血浆组的腱-骨结合部位的骨密度值大于5 mg富血小板血浆组 (P 0.05)。提示富血小板血浆能够促进兔前交叉韧带重建后腱-骨界面骨密度的提高,有效预防骨隧道的扩大,且以富血小板血浆浓度10 mg为佳。
Effects of different concentrations of platelet-rich plasma on tunnel enlargement after anterior cruciate ligament reconstruction
Li Hong-qiu, A Liang, Zhao Zhong-hai, Dong Li-yang (Central Hospital Attached to Shenyang Medical College, Shenyang 110024, Liaoning Province, China)
Abstract
BACKGROUND: Platelet-rich plasma contains growth factors that can promote tendon-bone healing, thereby reducing occurrence of bone tunnel enlargement after anterior cruciate ligament reconstruction; different concentrations of platelet-rich plasma have certain influence on bone tunnel enlargement, but it is not clear which concentration is optimal.
OBJECTIVE: To study the effect of platelet-rich plasma on tunnel enlargement after anterior cruciate ligament reconstruction.
METHODS: Bilateral anterior cruciate ligament reconstruction was conducted in 20 New Zealand white rabbits using Martinek et al’s method. Tendon graft was pretreated with 10 mg platelet-rich plasma gel on one side as an observation group. Graft on the contralateral limb was pretreated with 5 mg platelet-rich plasma gel as control group. At 12 weeks after surgery, radiological observation and measure of the width of bone tunnel were conducted. Tunnel enlargement rat
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