Arnold-Chiari syndrome is a congenital malformation where part of the cerebellum is pushed in to the vertebral canal causing obstruction of the cerebral liquid system (obstructive hydrocephalus). This condition is treated surgically (solving the hydrocephalus).
Whether you'll be able to have a vaginal delivery or not, depends upon the neurological sequels from the anomaly youâve experienced. You need to be examined by a neurologist to test your abilities.