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为了探讨肌腱不同程度损伤对愈合过程中胶原纤维的形态学影响，选４０只雌性Ｗｉｓｔａｒ大鼠分为Ａ组和Ｂ组，Ａ组为足背伸肌腱完全切断，Ｂ组为足背伸肌腱部分切断。术后１５，３０，６０及９０天取材，对胶原纤维进行形态学分析。结果表明，术后１５及３０天两组间胶原纤维直径无明显差异（Ｐ＞０．０５），术后６０及９０天两组间胶原纤维直径及分布均有显著差异（Ｐ＜０．０５）。认为，大鼠伸肌腱损伤程度对肌腱晚期愈合过程中胶原纤维的形态有明显影响
In order to investigate the morphological effects of different degrees of tendon injury on collagen fibers during healing, 40 female Wistar rats were divided into group A and group B. Group A was completely cut off from the dorsalis pedis and extensor tendon, Cut off At 15, 30, 60 and 90 days after operation, the morphology of collagen fibers was analyzed. The results showed that there was no significant difference in the diameter of collagen fibers between the two groups at 15 and 30 days after operation (P> 0.05), while the diameter and distribution of collagen fibers at 60 and 90 days after operation were significantly different (P <0.05 ). That the extensor tendon injury in rats tendon tendon healing process in the shape of collagen fibers have a significant effect