Skin flap transplantation is often used for replantation of severed fingers. Then, experts from Shijiazhuang Xingyuan Plastic Surgery Hospital will give you an analysis. The common method of skin flap transplantation is 1. The local rotation method is to use the skin tissue around the edge of the wound to make a flap, rotate it clockwise or counterclockwise for a certain angle, and transfer it to the defect to close the wound. Surgical procedures: when designing the local rotating flap, its length and diameter must be larger than the wound, otherwise the suture after transplantation will be too tight, which will not only easily crack the wound due to tension, but also have a serious impact on the blood supply distance of the flap. According to the design, the flap was cut and separated, and the wound was covered by rotation. After the flap is rotated, due to different rotation angles, different degrees of skin folds may appear on the pedicle defect side, which is called "cat ear". The larger the angle, the more obvious it is. This kind of fold can not be removed immediately, and it must be repaired by flattening or other operations after operation, otherwise the pedicle width will be narrowed and the flap will be necrotic due to blood supply disorder. After skin flap transplantation, some wounds in the donor site can be directly sutured, and some need to be closed by skin grafting. Commonly used flap transplantation methods II. The local propulsion method is to use the extensibility of the skin to form a flap on the skin around the wound, and push the flap vertically to the wound to close the wound. V-Y forming is such a method.

Steps: According to the skin defect of the wound, make a V-shaped incision on the skin on one side of the wound. There should be a proper distance between the incision on both sides and the edge of the wound to maintain the blood supply of the flap. Separate under the skin to form a valve. Then, push the flap forward and sew it to the edge of the wound to close the wound. The donor site wound can be slightly separated from both sides of the V-shaped incision, and then pulled together for Y-shaped suture. Similarly, Y-shaped incision and V-shaped suture can also be used to repair wounds. For long and narrow skin defects, vertical incisions can be made directly on both sides of the edge of the defect wound, and skin flaps can be formed between the incisions to close the wound by using the extensibility of the skin. 1 2