| Objective:The purpose of this study is to research the incision design and the complication prevention of the multi-expanders implantation.Methods:Fifteen patients (7 males and 8 females) with ages ranging from 5 to 51, consecutively, with large defects of the skin between March of 2006 and March of 2009 are included in this study. The reasons resulted to the large defects of the skin of these patients are as follows:①t he resection of the giant nevus②the treating of large scar.We treated them by skin soft-tissue expansion with two or more expanders. The minimum area of the skin defect was 4.5cm×2.0cm,and the largest area of the skin defect was 19cm×21cm.Preoperative photographs should be taken.Before the operation, the position of the expanders and the incision lines were marked out with methylene blue. Cavities of suitable size were formed mainly by dissecting the skin-soft tissue. Make sure any living bleeding was stopped by using the gauze or electric coagulation. Insert the negative pressure drainage before inserting the expanders. Close the incision finally.The second step was injecting the normal saline time by time into the expander to make the skin-soft tissue expanded.This phase might last for several months until enough skin was produced.The last important procedure was to take out the expanders and repair the skin defects according to skin flaps transfering.Results:All the patients who received the skin soft-tissue expansion with two or more expanders had perfect results except one patient. Most patients were satisfied with the flap's color and luster,and also the regional function. The rates of the complication happening were not very high,but still higher than it in the single expander skin soft-tissue expansion.Conclusions:1. We can use one incision for the adjacent expanders; the incision which is perpendicular with the expanders is better.2. To stop bleeding by using the cold light source and to use grating suture can prevent complication effectively.
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