Just a handful of so-called Ischiopagus Tripus conjoined twins have been recorded, the MailOnline reports. The toddlers were unable to sit up until they were three years old and were forced to lie flat until surgeons managed to amputate one of the twin’s legs to allow them to be positioned upright. Conjoined twins account for one in 50,000 to 200,000 births and in two-thirds of cases at least one twin either dies or is stillborn. Their parents did not expect the ultra rare phenomenon and there was no family history of congenital anomalies. The family already have two other children and there were no significant events or illnesses in the weeks before the children were born.
