摘要
Tissue expansion is a naturally-occurring phenomenon.Human skin will stretch and expand naturally under continuous pressure,resulting in extra skin,which is the theoretical basis of expander reconstruction and repair.Tissue expansion technique is of great value in the reconstruction of various parts of the human body,especially in the treatment of facial and neck scars.The related complications are as follows:infection,hematoma,seroma,exposure,necrosis,displacement,skin flap retraction and so on.Patient selection,surgical design and technical control are all indispensable for obtaining good aesthetic results and reducing the incidence of complications.