What is bunionization? Bunionization is a traditional surgical procedure for the treatment of bunions (type IV bunion dysplasia). The most typical symptom of a bunion is the absence of the metacarpal bone or only the remains of the metacarpal bone. Therefore, in the past, the treatment for a bunion was usually to remove the bunion directly, and then reconstruct the thumb by transposing the index finger, so that the child could have the function of the thumb after the operation, thus greatly improving the overall function of the patient’s hand. The disadvantage is that the child will only have four fingers after the surgery, which is difficult for many parents to accept. What is metatarsal reconstruction? Metatarsal reconstruction is a surgical procedure that can be performed to save all five fingers. Metatarsal reconstruction involves removing a portion of the metatarsal bone from the foot to rebuild the first metacarpal bone. There is a chance of bone resorption and necrosis. Since the foot needs to bear weight for a long period of time, there will be some impact on the bone taken from this part of the foot. After the operation, the child will not be able to go down to the ground for 3 to 4 months, and can only lie down or sit, and the nursing care will be more cumbersome. What is Hemimetacarpal Bone Graft Reconstruction? Hemimetacarpal Graft Reconstruction is a surgical procedure that can be used to treat a floating bunion. It can preserve the bunion and the child’s thumb will have good shape and function after the surgery. The technique involves taking a portion of the second metacarpal bone and reconstructing the first metacarpal bone. The surgery is performed on the hand only and does not affect any other part of the child’s body, and the metacarpal bones in both the donor and recipient areas will continue to grow after the surgery. The more suitable age for this technique is around 6 months to 1 year old, which catches the stage of establishing the thumb function of the child, so that the thumb function of the child can be established more smoothly, so more and more parents will choose to save their children’s five fingers through the semi-metacarpal bone grafting reconstruction technique.