ABSTRACT
Objective To investigate the application of skin expansion ear reconstruction on congenital microtia and analysis the complications .Methods Selected 57 patients with congenital microtia in this hospital ,medpor bracket and drainage volume large drainage device were applied in 28 cases of observation group and costicartilage bracket since body and drainage volume small drain-age device were applied in 29 cases of control group .Results 57 cases achieved good therapeutic effect .Complication of narrow au-riculocephalic angular ,both sides of the pinna asymmetry in observation group had significant difference with control group (P<0 .05);The negative pressure value at 12 ,24 hours in observation group was significantly higher than in control group (P<0 .05);Drainage volume at 6 ,12 ,24 hours in observation was significantly higher than that of control group (P<0 .05) .Conclusion Skin expansion ear reconstruction on congenital microtia had high success rate ,reengineering ear has dimensional sense .The use of new materials and the large volume of drainage device can reduce complications ,and ensure the efficacy .