Although today’s medical level has developed rapidly and the possibility of finger loss can be avoided through finger replantation surgery, any surgery has certain risks and finger replantation surgery is no exception. There are many things that need to be paid attention to in order to make the finger more intact. Replantation of severed limbs is a delicate surgery to restore the function of a completely or incompletely severed finger body by reanastomosing the severed blood vessels under the aid of an optical microscope, thoroughly clearing the wound, and carrying out the repair of bone, nerve, tendon and skin, followed by comprehensive treatment in various aspects. The key to successful replantation of severed fingers is whether the blood vessels can be connected. 1.Replantation is not suitable for those who suffer from systemic diseases, poor physical condition, or serious organ injuries that do not allow long time surgery. 2.The broken finger with multiple fractures or serious soft tissue injury. 3.The integrity of the vascular bed of the finger is severely damaged, such as the broken finger caused by crush injury, which shows subcutaneous petechial hemorrhage on both sides of the finger, and even if the blood vessel is connected, it is still difficult for the replanted finger to survive due to extensive blood leakage and thrombosis in soft tissue. 4. If the time limit for replantation is too long and the tissue has degenerated, it is not suitable for replantation. Without refrigeration, the ischemic finger may still survive for 24 hours, and the time limit for replantation can be extended to more than 30 hours if the finger is refrigerated immediately after the injury. However, the shorter the ischemic time, the higher the survival rate of replantation; conversely, the longer the ischemic time, the lower the survival rate of replantation. After reading the above explanation, you should have a certain understanding of the limitations of finger replantation surgery. In order to increase the success rate of the surgery, patients who are unfortunate enough to have their fingers cut by sharp objects should bring their broken fingers to the hospital for treatment at the first time, and should not delay the surgery.