A mum said she knew something was wrong with her five-year-old son when he was screaming in pain and couldn't straighten his legs.
Bobby Harry, from Bebington, Wirral, started getting intense pains in his left leg in June 2022. His mum, Rachael, took him to Arrowe Park Hospital, where he had a number of tests and was cared for in the Children's ward.
The five-year-old underwent surgery to remove fluid from his leg and after his tests came back he was discharged. But one month later Rachel said Bobby was "screaming" and "couldn't straighten either of his legs".
