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目的：了解皮肤撕脱伤修成暴露真皮下血管网皮瓣回植创面的血循环变化特点和对皮瓣成活的影响。方法：以猪为实验对象，制作皮肤撕脱伤模型，观察皮瓣的血循环变化和成活情况。结果：将撕脱瓣修成暴露真皮下血管网的皮瓣再回植，可以使皮瓣血循环显著改善。结论：将撕脱瓣修成暴露真皮下血管网的皮瓣再回植，可以使皮瓣成活长度显著增加。,Objective: To find out the characteristics of the changes in circulation of sub-dermal vascular network flap made from flap-type skin avulsion Injury and replanted to origin site. Method: Pig skin avulsion model was used in this experiment. Flap’s blood circulation was monitored and surviving flap length measured. Result. Flap blood circulation was markedly improved. Conclusion: Sub-dermal vascular network flap made from skin avulsion flap and replanted to origin site can improved the survival length of the flap.