“The child’s hand is already like this, we can’t bear to move the child’s foot again, it’s too cruel!” This is the real idea of many parents of children with floating finger, because of this idea, many parents can not accept to take the bone from the foot to protect the thumb, but want to take the metacarpal bone. If the metacarpal bone is removed, parents will have a question, will the metacarpal bone have an effect on the child after it is removed? According to our follow-up, the length and width of the metacarpal bone basically recovered after the operation, because the child has the ability to grow again, so parents do not need to worry too much. Is it true that the younger the child is, the better his ability to grow? There is no doubt that the younger the child, the better the ability to grow. When we take a part of the child’s metacarpal bone, after a period of growth, the metacarpal bone will return to a near-normal state and basically function normally, except that there will be a scar on the back of the child’s hand.