Abstract
We have applied serial excision, free skin graft for the skin legions which we could not simply excised. Recently tissue-expander has been used for those cases, but the mechanism by which soft tissue is stretched for about two months in human body has not been studied, and we took negative replica with silicon rubber and analyzed the feature of skin surface in tissue expansion. Ten patients were implanted of tissue-expander. Taking twenty-five replica, we observed the change of skin-relief with microscopy. In conclusion, we confirmed the validity of tissue expander in texture match, and the fact that as to lower bed, we could expand the harder area more than softer one, and the difference between men and women with ability of skin expansion.