@CNN: 13-year-old Delaney Unger opted for an unusual cancer treatment so she could continue her love of dance. Her left ankle now faces backward and serves as a knee, allowing natural joint flexibility https://t.co/N3j9asUz7J https://t.co/8dWs3CE9ec

@CNN: 13-year-old Delaney Unger opted for an unusual cancer treatment so she could continue her love of dance. Her left ankle now faces backward and serves as a knee, allowing natural joint flexibility https://t.co/N3j9asUz7J https://t.co/8dWs3CE9ec