The cranium plays a very important role in the functioning of the life of the entire organism and the health of the human body. However, cranial defects are really a common cranial disorder, so cranial bone repair should be carried out in time. Cranial bone repair surgery process: 1, first of all need to the patient’s skull for three-dimensional CT scanning, extraction of accurate three-dimensional data, three-dimensional reconstruction, 3D printing to produce a personalized PEEK repair material in full compliance with the structure of the bone window. 2.During the surgery, the scalp is cut open, the layers of tissues are carefully separated to expose the bone window, and then the material is accurately fitted to the bone window and adjusted and reset. 3.Fixed well with special lap screws, suture all layers of skin and the surgery is completed. 4.After the operation, pay attention to give antibiotics to prevent infection, hemostasis and neurotrophic drug treatment; pay attention to observe the patient’s change of drainage flow in the operative cavity, change the medicine regularly and observe the healing of the incision. How long do you need to stay in the hospital after cranial repair surgery: If the patient is not too anxious, waiting for the removal of stitches and then discharged, the general in the 8 to 10 days after surgery, cranial repair surgery hospitalization time is generally in two weeks or so, there are some special circumstances, or there are comorbidities, internal medicine diseases, may be hospitalized for a longer time. Routinely, after the skull repair surgery, the general scalp incision may be about 8 days to remove the stitches, there are some scarring incision healing is not good, about 10 days can almost remove the stitches; before the operation need to give the patient to do some routine preoperative examination, as well as give the patient to do the customization of the skull, it may take three to four days to do the molds, and make customized bone, repair materials and so on. After surgery, some routine infusion or have some anti-epileptic treatment, this is a routine operation.