幼儿指屈肌腱断裂后萎缩的临床及实验观察

The clinical and experimental observation of flexor digitorum tendon atrophy after rupture in infants

目的:研究幼儿指屈肌腱损伤后远断端的形态学变化。方法:(1)观察临床幼儿指屈肌腱损伤后延期修复时远断端的变化。(2)以大白鼠幼鼠为实验动物,将双后足第4趾屈肌腱切断,右侧不缝合作实验组,左侧缝合为对照组。实验结束后进行大体和光镜观察。结果:临床组及实验组皆见到未缝合的肌腱远断端有萎缩,而对照组则萎缩不明显。结论:当幼儿屈肌腱损伤后若不早期修复,则远断端会发生萎缩。

Objective: To study the morphological changes in the distal stump of infantile flexor digitorum tendons after rupture. Methods: (1)The changes of the distal stump of ruptured flexor digitorom tendons were observed during delayed repairing of clinical infantile cases. (2)Young rats were used for further study. After the fourth flexor digitorum tendons of bilateral hind paws were cut.the right side was left unrepaired as the experimental side while the left one was sutured to serve as control. The gross and light microscopic changes were observed after the experiment. Resuits: Atrophy of the distal portion of the unrepaired tendons was found both in clinical cases and the experimental group. Atrophy. however. was not remarkable in the control group. Conclusion: Flexor tendons of infants should be repaired as early as possible to avoid tendon atrophy.