Ｉｌｉｚａｒｏｖ环行外固定器用法变化很多 ,根据临床需要可进行骨延长、加压、矫正成角和旋转畸形等多种用途。尽管功能繁多、效果好 ,但临床应用中仍有许多问题和并发症发生 ,如肌肉挛缩、轴向偏移、神经血管损伤、加压克氏针对脱钙骨的切割、针道感染等。总结 12例患儿应用 Ilizarov ring external fixators use a lot of changes, according to the clinical needs of bone extension, pressure, correction of angulation and rotational deformity and other purposes. Although there are many functions and good effects, there are still many problems and complications in clinical application, such as muscle contracture, axial deviation, neurovascular injury, Kirschner wire’s decalcified bone cutting and needle tract infections. Summary of 12 cases of children