The study concerns a clinical experiment in two patients with a dermal substitute based on atelocollagen and hyaluronid acid, and allogeneic acellular dermis. In both cases two-step grafting was perfonned. At the first step the dennal substitute was implanted into the wound and it was grafted at the second step with thin dermoepi- dermal autograft. Large hypertrophic scars after bum injury were treated. In both patients the quality of skin cover was significantly improved.

        Key words: dermal substitute O hypertrophic scar O severely burned patient