Only 20 such operations have been done around the world so far, the hospital’s chief pediatric surgeon Dr. Mickey Gideon said, per Israel’s Mako news portal.
The separation means the girls, who have not been publicly named, are now able to see each other for the first time.
The girls were born in August 2020 and were attached by the back of their heads, a rare condition called craniopagus twins, per The Jerusalem Post.
A team of about 50 staff, including surgeons from the UK and US, had been training for the surgery for about a year, Israel’s Channel 12 reported.
Using imaging techniques including MRT and CT scans, and angiography, the team drew up an intricate 3D virtual reality model of the girls’ brain structures, skull bones, skin, and shared blood vessels, per Mako.