大鼠跟腱应力屏蔽挛缩模型的建立

Chinese Journal of Rehabilitation Theory and Practice(2009)

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Abstract
目的建立一种新的大鼠跟腱应力屏蔽挛缩动物模型。方法将8只SD大鼠随机分为造模组和正常对照组,造模组左后肢用跟腱环扎联合坐骨神经切断的方法造模,正常对照组不做任何处理,3周后取两组左后肢跟腱,进行透射电镜观测,观察其形态学变化。结果与正常对照组比较,造模组胶原纤维排列紊乱,肌腱细胞数目增多且有细胞固缩现象;线粒体肿胀,小直径纤维比例增多且大小直径纤维分布不均。结论跟腱应力屏蔽挛缩模型的制作成功、有效,实验研究具有可重复性。
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Key words
stress-shielding,contraction,Achilles tendon
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