Congenital syndactyly usually requires surgical treatment, and the purpose of surgical correction of syndactyly is to establish a satisfactory webbed shape and avoid secondary flexion contracture of fingers. Although syndactyly separation is not a very complicated operation, it often fails to achieve the expected effect because of ignoring its treatment principles and techniques. Baby's fingers are too short, which brings difficulties to skin flap design, skin grafting and postoperative fixation. Moreover, due to the relatively rapid development of the hand, the scar will shrink after operation, which can not adapt to the development of the hand and requires two or more surgical repairs. Therefore, for fingers that have little effect on function and do not obviously hinder development, it is not advisable to operate prematurely. On the other hand, syndactyly, such as distal syndactyly, which has a great influence on function or obviously hinders development, can be advanced appropriately. However, syndactyly, which leads to large joint capsule defect after finger separation, may aggravate postoperative dysfunction and may not be treated. Multi-finger surgery is safer in stages. Specific surgery should follow the following principles:

1, the timing of operation and treatment of syndactyly should depend on the shape and degree of syndactyly, the general health status of children, the safety of anesthesia and the requirements of parents. After early operation, the finger development speed of children was accelerated, and the residual deformity was obvious after later operation. For those syndactyly whose joints are not at the same level, which affects the flexion and extension of fingers, and syndactyly whose distal phalanges are fused together, if not separated in time, it will affect the development and function of fingers, and surgery can be performed at the age of 3-4. If it is simple incomplete syndactyly of fingers 2 and 3, the operation can be performed within 6 months because the operation is simple and there is no need for long-term fixation after operation. Complex syndactyly involves the fusion of bone components. In the process of growth and development, syndactyly will also grow, rarely causing shortness or flexion deformity. Moreover, there are many variations in blood vessels, nerves and tendons of complex syndactyly, and the operation is difficult and risky because of the young age. Therefore, the operation should be performed after 3-4 years old.

2. Fingering should be thorough, and parallel fingers should be completely separated to the normal webbed bottom. If the base of the web is not completely separated, some fingers will still be left. A normal webbed finger should have a fairly wide and long inclined skin fold, accounting for 1/3- 1/2 of the length of the proximal phalanx.

3. Rebuild the network.

. . .