[Voluntary bilateral dislocation of the hip in children: a case report and review of the literature].

Voluntary bilateral dislocation of the hip was discovered in a three-year-old girl. Dislocation was documented by arthrography and computed tomography. After failure of a capsuloraphy, successful treatment was achieved with bilateral femoral varus oseotomy. Stability has been good after six years follow-up. Clinical and radiological signs as well as the underlying causes and treatment are discussed in light of this case and fifteen others reported in the literature.