Trial of Prophylactic Manual Rotation of Persistent Occiput Posterior Presentation During the Early Second Stage of Labor to Reduce Operative Delivery: a Prospective Multicenter Randomized Control Trial

Inclusion Criteria: * Age ≥ 18 years * Singleton pregnancy * Term ≥ 37 weeks of gestation * Early second stage of labor * Rupture membranes * Persistent occiput posterior position confirmed by ultrasound * Epidural anesthesia * Patient who agree to participate and sign consent form Exclusion Criteria: * Age \< 18 years * Term \< 37 weeks of gestation * Vaginal and instrumental Delivery maternal contraindication * Antecedent of perineal injury type IV * Sensitive perineum * Crohn's disease with vaginal delivery contraindication * Instrumental fetal contraindication * Non reassuring fetal heart with impossibility of optimal maternal information * Known fetal malformation * Previous ceaserean section * Non cephalic presentation * Not affiliated to social security