Limb amputation refers to the traumatic amputation of large limbs, finger amputation refers to the amputation of metacarpophalangeal joints at the distal end of fingers, and replantation of severed limbs (replantation of severed fingers) can be divided into complete amputation and incomplete amputation. With the popularization of mechanization, many people are prone to hand injuries and broken fingers and limbs at work, which is unacceptable to everyone. With the development of microsurgery technology, the regeneration of severed fingers has become a reality. Can it be minimally invasive after finger amputation? Complete amputation means that the distal end of the injured limb (finger) is completely separated from the body without any tissue connection or only a small amount of tissue connection, which must be removed during debridement. Incomplete amputation refers to the fracture or dislocation of the cross section of the affected limb, the connected soft tissue is less than 1/4 of the total cross section, and the main blood vessels are broken or embolized; Or the cross section of the injured finger is only connected by tendons, the residual skin does not exceed 1/8 of the circumference, other vascular tissues are completely broken, there is no blood circulation or severe ischemia at the distal end of the injured limb (finger), and failure to suture blood vessels will cause limb (finger) necrosis. For replantation of severed fingers, many people don't know much about the conditions for successful replantation of severed fingers. According to experts, the conditions for successful replantation of severed fingers are as follows: 1. Correct preservation of severed fingers is the basis and prerequisite for successful replantation of severed fingers. Sometimes the fingers are not completely severed, but there is still a little skin or tissue connected, and there may be tiny blood vessels, which are enough to provide nutrition, avoid finger necrosis, and properly wrap and protect them to prevent blood vessels from twisting or stretching. If your finger is broken by the machine, don't forcibly pull out or reverse the machine, so as not to increase the injury. You should take apart the machine and take out the broken finger. Who is suitable for replantation of severed fingers? Experts will interpret it for you. 2. If the finger stump bleeds, stop bleeding first. After the severed limbs and fingers, although they lost blood nourishment, they still have vitality in the short term, but over time, they degenerate and rot. Hand wounds should be bandaged with sterile or clean dressings, and tourniquets can be used if blood vessels bleed heavily. 3. After taking various measures to stop bleeding, bandage and preserve the severed finger, it is necessary to send the severed finger to the hospital quickly. The most important thing in replantation of severed fingers is time. Replantation of complex severed fingers-functional reconstruction: removing pollutants and necrotic tissues under high-definition microscope, fixing phalanges → suturing tendons → anastomosing nerves → anastomosing arteries → suturing skin tendons → anastomosing veins → suturing skin, and replanting fingers by shifting blood vessels, nerves, tendons and skin flaps. Experts pointed out that replantation of severed fingers is very difficult. To treat this disease, doctors need rich surgical experience, and have high requirements for their opponents' skills, energy and cooperation. Therefore, it is very important to choose a professional hospital for treatment.