[Tissue expansion. Presentation of a model of external filling valve]

Based on their experience of facial tissue expansion, the authors present a model of an external filling valve and illustrate its advantages in 9 cases in which 13 external valve were used: painful injection, absence of leakage, fast and confortable filling. The indications are sequelae of facial burns, face scars, treatment of orbito-temporal neurofibromatosis. The major advantage is rapid tissue expansion which reduces the problems of infection and skin loss.