An operation that lasted for 27 hours successfully separated conjoined Bangladeshi twins, Krishna and Trishna, in Australia on Tuesday.

The surgical team was composed of 16 surgeons and nurses who managed to separate their brains.

The sisters were joined at their heads, sharing brain tissue and blood vessels. A charity worker found the two in an orphanage in Bangladesh.

The Children First Foundation arranged to take the girls to Australia in 2007 after the doctors in Bangladesh failed to conduct a separation surgery.

Leo Donnan from the Royal Children’s Hospital in Melbourne said the twins still had to face many hours in the operating room after the initial surgery. Five more hours were spent to finish reconstructing their skulls. The girls’ bone grafts, skin and some artificial materials were used for the reconstruction.

The twins are now in a better condition.

Prior to the surgery, the doctors gave the girls a 50% chance of suffering from brain damage and a 25% chance that one of them would die.

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