Compound graft with acellular exoge-nous dennis and autogenous thin skin reducing formation of scar

BACKGROUND: Autogenous skin graft is a common method in treatment of deep bum, late survive effect of grafted skin flap is directly related to its thickness. In clinic, therapeutic effect of full thickness graft is the best. However, due to large skin-providing area that can't be sutured directly and survive rate of graft at infected wound surface is very low, its clinical application is limited, especially in deep burn with large area. This study is to search a best material repairing wound surface of deep burn, reduce proliferation of scar and protect limbs function.