In earlier times, there was no good treatment for floating finger, European and American doctors used to directly choose to remove the floating finger and then show the finger bunionization, but for many of our domestic parents and children, there is no way to accept that the child only has four fingers. Many parents have higher requirements for the integrity of their children’s fingers, and then we used metatarsal bone reconstruction surgery to treat their children’s floating finger, which is a more traditional treatment method that requires taking metatarsal bones from the child’s foot and transplanting them to the hand, which can preserve the five fingers after the surgery, but it will lead to some effects after the surgery. Now we use the most advanced surgical method for treating floating fingers – Semi Metacarpal Bone Graft Reconstruction (SMRT Floating Bunion Reconstruction), where a portion of the child’s second metacarpal bone is taken to reconstruct the first metacarpal bone. The entire surgery is performed on the child’s hand only, and it will not affect any other parts of the child’s body, and the five fingers can be retained after the surgery without affecting the growth and development of the second metacarpal bone. After the surgery, the five fingers will be preserved and the growth and development of the second metacarpal bone will not be affected. Through our observation over the years, we have found that the function and appearance of the child’s thumb have been improved after the surgery. The use of Semi Metacarpal Bone Graft Reconstruction (SMRT Floating Bunion Reconstruction) for treating floating fingers has multiple advantages. Nowadays, more and more parents are more willing to choose this surgical method for treating their children’s floating fingers.