RESUMO
Children avascular necrosis of femoral head is a self-healing,self-limiting and non-systematic disease occouring locally in femoral head of children.The purpose of traditional conservative and surgical treatments is to improve blood circulation,decrease intraosseous pressue,decrease arthrosis pressure,reduce capital mechanical pressure to the femoral head and increse its containment.Anyway,no treatment could stop the progress of coxa plana and degeneration of the bone,which could lead to disorder of the hip.As a new technique,autologous bone marrow stem cellular transplantation has obtained preliminary curative effect.It has been proved to be a new effective treatment of children avscular necrosis of the femoral head with combined use of tissue enginering bone.