Chen Tuanzhi , 26 , was born with 'backward-bending knee ' condition . Became known as 'crawling girl ' in her village as she could n't use her legs . Rare condition only occurs in 1 in 100,000 babies at birth . Charities paid for her to undergo painful treatment in Chi Hospital .
Chen Tuanzhi , 26 , was born with 'backward-bending knee ' condition . Became known as 'crawling girl ' in her village as she could n't use her legs . Rare condition only occurs in 1 in 100,000 babies at birth . Charities paid for her to undergo painful treatment in Taiwan .