What is cranial repair? Cranial repair is a common brain surgery procedure to repair the skull in response to cerebrovascular disease, trauma, and other craniotomies that result in cranial defects. Why Repair Skull Defects Patients with skull defects often have a heavy burden of insecurity, which can cause headaches, dizziness, fear of vibration and other syndromes. The longer the cranial defect, the higher the incidence of cranial defect syndrome and secondary brain damage. Due to the change in shape of the cranial defect area, the scalp is subjected to atmospheric pressure, which causes it to sink in and compress the brain tissue. In order to restore the airtightness of the cranial cavity, physiological intracranial pressure is kept stable and the cranial defect syndrome is alleviated. Cranial bone repair should be performed for all cranial defects with a diameter of 3 cm or more, without muscle coverage and without contraindications. The longer the cranial defect, the higher the incidence of cranial defect syndrome and secondary brain damage. Timing of surgery Cranial defects with a diameter of more than 3 centimeters, without muscle coverage, and without contraindications should undergo cranial repair. It is generally considered appropriate to repair the defect 3~6 months after craniotomy; children can be shaped after 3~5 years of age. Material selection With the improvement of people’s living standard, people not only want to achieve anatomical and physiological recovery through cranial repair, but also have higher and higher requirements for cosmetic appearance. Currently, the most commonly used material is titanium mesh plate. Previous reconstruction surgery is by the doctor in the operation according to the size and shape of the patient’s defective parts, in the patient’s head after comparing the repeated repair, cut and sew, until it meets the requirements of the patient’s defective parts, but the repair material titanium alloy is not easy to form, the operation needs to be repeatedly molded, which increases the operating time, and repeated cutting will weaken its strength, increase the amount of titanium alloy screws, and thus increase the cost of the operation. Cosmetic treatment method for cranial defects The digital cranial contouring technology of CT three-dimensional reconstruction technology is a revolutionary advancement for cranial repair surgery. CT three-dimensional reconstruction is based on the condition of the patient’s cranial defects, simulating the natural shape of the skull, and after five items of data processing of CT, three-dimensional reconstruction of medical science, surface mapping of the natural curved surfaces of the skull, assisted design of computer graphic images, and digital fabrication of titanium metal Through five procedures, including CT data processing, medical 3D reconstruction, surface drawing of the natural curved surface of the skull, computer graphic image assisted design and digital fabrication of titanium metal, we can accurately design and prefabricate personalized titanium alloy skulls for the patients to repair the defects by using the results of the 3D CT examination; this technology realizes the precise combination of the titanium alloy skulls and the defective parts to achieve good therapeutic effects, reduce the pain of the patients, and the risk of the treatment is greatly reduced, and the patients’ recovery period is shortened after the operation, so that they can return to their work and integrate into the society faster.