What conditions should be met for cranial repair surgery? Cranial defects are mostly due to surgical treatment, traumatic defects and congenital cranial defects. And cranial defects not only affect the cosmetic aspect. In severe cases, they can also pose a health risk to the patient. Cranial defect repair to meet the defect area greater than 3 * 3cm; is the scope of surgery can be carried out. There is also a serious defect that affects the appearance of the skull can also be carried out cranial bone repair surgery. So it depends on the individual situation to choose. For example, in children, some of the skull defects may heal later and do not require surgical treatment, regardless of the size of the defect. Therefore, it is advisable to go to the hospital for an interview and consult with the doctor to decide whether or not the defect needs to be repaired. Cranial defects in children and adults Cranial defects in some people are children, and the size of the defects in children is small, and some of them can form islands of bone, which may form thin bone fragments in the later stage, which is a chronic process. The degree of local healing depends on the individual’s physique, and some children may grow well if the defect is observed for a long period of time and the small area of the defect. However, there is no systematic evidence for large defects. So even in developing children, cranial defects may not grow well on their own. Patients should plan for the worst and not take any chances. In adults, cranial defects do not heal on their own and require a neurosurgeon to perform cranial repair surgery. Causes of cranial repair: The main causes of repair are defects formed by craniocerebral trauma and brain surgeries (mainly aneurysms in the acute stage, cerebral hemorrhage, etc.) that remove bone flaps. Due to the change in shape of the cranial defect area, the scalp is subjected to atmospheric pressure, which causes it to become inwardly compressed against the brain tissue. In order to restore the airtightness of the cranial cavity, maintain physiological intracranial pressure stabilization and alleviate the cranial defect syndrome. To solve the problem that there is no effective protection of brain tissue in the defect area, impaired blood supply and abnormal cerebrospinal fluid circulation. Choice of material: The material is generally chosen peek, which has better histocompatibility. Higher comfort and enhanced thickness. It is similar to human skull. Especially for pediatric patients, it is better adapted to the growth and development of the human autogenous cranium. And it will have a lower rate of infection and rejection. Importantly, polyether ether ketone material is a material that can be three-dimensionally plasticized, and it can be three-dimensionally customized according to different patients’ conditions, which can really restore the physiological structure of the cranium perfectly. Purpose of cranial bone repair: Patients with cranial bone defects often have a heavy burden of thought such as insecurity, and 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. Therefore, cranial repair is necessary for safety reasons.