[Influence of age, growth potential and functionality in the management of bone tumours in children : example of the rotationplasty].

Malignant bone tumours in children are rare diseases whose survival rate has progressively improved in recent years thanks to advances in pharmacology, surgery and radiotherapy. We present the particular case of a very young child with Ewing's sarcoma of the thigh. We discuss the influence of this young age on short and long term care. Limb skeletal immaturity and the residual growth potential need to be integrated to define the safest oncological and functional strategy. For this purpose, we summarize the different possible reconstructive options. We describe the Van Nes rotationplasty that was proposed in our patient's case and we will detail the issues in terms of functional well-being and self-image.