Balancing anatomical limits and dynamic adaptation: Understanding the determinants of successful vaginal breech delivery

In term breech deliveries, intrapartum dynamics showed stronger associations with intrapartum cesarean and neonatal outcomes than MRI pelvimetric dimensions, whereas fetal anthropometric parameters and leg position did not show comparable associations. MRI pelvimetry offers anatomical information at baseline, while continuous intrapartum evaluation reflects dynamic processes that are more closely associated with observed outcomes in vaginal breech birth.