Prenatal Surgical Repair of Fetal Myelomeningocele

The open surgical repair of myelomeningoceles before 26 weeks gestational age provides a correction of the anomaly of Chiarri, reduces the incidence of ventriculomegaly (defined as a measure of the ventricles at the crossroads ≥ 10 mm), and get a lower of injury than one corresponding to the anatomical defect (as defined by the last upper normal vertebra before the defect). The purpose of this study is to introduce in France an innovative technique for prenatal repair of myelomeningocele until now developed only on the American continent.