Retrograde Colonic Irrigation to Manage Spina Bifida Functional Digestive Sequelae: a Multicenter, Prospective, Randomized Controlled Trial

Inclusion Criteria: * Patients aging at least 15 years old with Spina Bifida neurological pelvi-perineal sequelae, objected by neurologic exam , functional urinary and/or anorectal and/or neurophysiological data, * Patients with NBD score above 9, * Written and informed consent (Minor children may be included with the consent of the two parents). Exclusion Criteria: * Patients with psychiatric disorders, cognitive or intellectual disabilities compromising the assessment of primary outcome measure, * Patients using currently irrigation colonic technique, * Patients with functional colostomy, known anal or colorectal stenosis, colorectal cancer, acute or chronic inflammatory disease, recent anal or colorectal surgery for less than 3 months, polyp removal for less than 4 weeks, ischemic colitis. * Patients with urinary trophic or orthopedic disease with planned surgery during inclusion or follow-up periods, * Patients with progressive anal disease (suppuration, hemorrhoid or rectal prolapse) * Patient with a hard follow-up ( judged by the investigator) * Person involved in another clinical trial * Pregnant women * Person with a measure of legal protection (guardianship)