Tiffany Yorks of Clearwater, Florida (May 7, 1988 - February 24, 2016) underwent successful surgery in order to separate her legs before she was a year old. She was the longest-surviving sirenomelia patient to date. She suffered mobility issues due to her fragile leg bones, and compensated by using crutches or a wheelchair. She died on February 24, 2016 at the age of 27.