Rare conjoined twins have been separated at a world-leading hospital in London, surgeons have announced. Two-year-old sisters Safa and Marwa Ullah, from Charsadda in Pakistan, underwent three major operations to separate their heads at Great Ormond Street (Gosh). The first operation took place in October 2018, when the girls were 19 months old. The last operation, which saw them finally separated, was carried out on February 11 this year. The girls, who were born by Caesarean section, were craniopagus twins, with their skulls and blood vessels fused together. Gosh has previously successfully separated craniopagus twins in 2006 and 2011. In order to ensure the operations went smoothly, experts used virtual reality to create an exact replica of the girls’ anatomy. This enabled surgeons to visualise the complex structure of their skulls as well as the positioning of their brains and blood vessels. A team also used 3D printing to create plastic models of the structures that could be used for practice.
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