[Surgical amputation and prosthetic management in congenital fibrosarcoma of the lower extremity].

The concept of surgical amputation and the problems of prosthetic management in a girl with congenital fibrosarcoma of left distal thigh, knee and shank is described. After failed polychemotherapy (EICESS 92) and expansion of the tumor a radical knee disarticulation and intended marginal resection of the tumorous soft tissue area of the distal thigh was performed at the age of eleven months and two weeks. The femur was shortened by osteotomy of the diaphysis and removing a fragment in order to protect the distal femoral epiphyseal growth plate and to be able to close the soft tissue of the stump primarily. Prosthetic fitting and rehabilitation started at the beginning of statomotorical development at the point when four feet standing changed into two feet standing. In present, at the age of two years and six months, this girl is independent mobile and well fitted with a knee disarticulation prosthesis.