Last week, a young mom came to my clinic. During the consultation, she said something that really stuck in my mind, “I’m afraid I won’t know how to explain this to my child later on.” This mother’s daughter is a floating bunion baby, just turned two months, the whole family for her daughter’s hand also ran for two months, before coming to my place has asked two or three hospitals. Because there is no similar condition in either side of the family, when the baby was first born, no one knew what the problem was, only that the baby’s thumb was dangerous and that they were afraid they would not be able to keep it. So from the birth of the child, the family has been asking around running around, afraid of late, the child will be left with a disability, the future of school, work, find a partner will be affected. Compared to other people, the mother of the child does not think so much, she is worried about her daughter slowly understand, how to explain to her daughter, so that her daughter can feel a little better, can not be affected by the outside world, can be healthy physically and mentally grow up. The mother said that they had been to several hospitals before, but the doctors gave the advice of either thumbing or metatarsal reconstruction, which would have an impact on the child after the operation, and they were afraid that if they did not make a good decision, their daughter would suffer when she grows up in the future, so they had been hesitating. Later, they learned about the metacarpal bone grafting technique on the Internet, so they brought their child here and asked me if I could do it. Semi-metacarpal Bone Graft Reconstruction Technique is a surgical solution to save the five fingers of the floating bunion. It is a way to save the floating bunion by reconstructing the first metacarpal bone from the second metacarpal bone, which is only operated on the hand and does not affect the other parts of the child’s body. The surgery is divided into two phases, the first phase is to remove the bone and the second phase is to build up the function. After the two phases of the surgery, the child will be able to carry out functional exercises, and the child’s thumb will not only have the form but also the function, and can write, twist bottle caps, or also have a strong grip on some large objects.