What tests should be done for cranial defects? An important auxiliary examination for cranial defects is CT. Firstly, we can get the three-dimensional data of the whole skull and do digital simulation design, so that we can design a prosthesis that matches perfectly with the cranial defect for cranial defects repair. Secondly, after the CT scan, you can see the recovery of the deeper injured brain tissue, and if the injured brain tissue recovers well, then the skull defect can be repaired. This means that a CT scan will basically determine the size of the skull defect to be repaired and whether or not surgery should be performed immediately. The main purpose of this is to look at the inside of the head to see if there is any hemorrhagic infarction and other related lesions, as well as to rule out hydrocephalus and other corresponding conditions. Then there is the head ct plus cranial three circumference reconstruction examination, this can be reconstructed on the computer the specific shape of the cranial defect, can be based on the actual imaging data, make suitable for individual cranial titanium mesh, so as to lay a good foundation for the subsequent repair work. These are some of the most basic checks, if found during the examination of some other related lesions, but also need to further improve the other related checks, including such as head nuclear magnetic and enhancement of ct and so on, this will be based on the actual situation for judgment. Thirdly, cranial defects are common sequelae after craniocerebral injury, cranial osteoma and other craniotomies. When the diameter of the defect exceeds 3 centimeters, it not only seriously affects the aesthetics of the patient, but also will appear a variety of clinical manifestations such as headache, dizziness, mood changes, defective area pulsation, and may even induce epilepsy and other serious diseases, which seriously affects the normal work and life of the patient. Cranial bone repair is mostly used to treat cranial defects in clinical practice. Cranial bone repair surgery Cranial bone repair surgery is a common brain surgery for repairing cranial bone defects caused by traumatic brain injury and craniotomy. Due to craniocerebral trauma and brain surgery to remove bone flaps, resection of benign tumors or tumor-like tumors in the skull, chronic osteomyelitis of the skull, etc., the shape of the defective area of the skull is changed, and the scalp is subjected to atmospheric pressure, which causes it to be trapped and compress the brain tissues, and cranial bone repair, which solves the problems of blood supply obstruction in the defective area, abnormal cerebrospinal fluid circulation, and so forth, and also solves the problems of shape repair and plastic surgery. The technique involves preoperative 3D CT scanning and reconstruction of the patient’s defective skull to create an original model of the patient’s cranial defect, then designing a shaping plan based on the data of the defective area of the model (including the size and curvature of the defective area, etc.), and then using digital equipment to shear and shape the material with a high degree of precision to make the material and the patient’s defective area reach perfect consistency.