My son Kaheim was a normal baby until he started to walk we notice he Limps after Taking him to the doctor we were told he has pffd iam not even sure what type it is because the doc was telling US about an OPeration to correct it and it would have to be repeated about every 3 to 4 years and it's a possibility of AN infection and then amputation is a must his right leg is 3.8 cm shorter than the left he's only 2yrs old please help me I Live in Jamaica