Cranial defects are a relatively common craniofacial disorder, and the loss of a large bone flap can pose a great threat to the patient’s life and health, and can lead to a number of cranial defect syndromes, so cranial repair is needed in a timely manner. Cranial repair is now a relatively routine procedure in neurosurgery with mature technology. The choice of repair material is very important, and some patients ask if they can use their own skull for cranial repair. The history of cranial repair materials: Cranial repair surgery has a history of thousands of years, and the repair materials have evolved and changed over the long development process. In the early history, there were applications of materials such as flannel and gold flakes, and in the later period, there were various repair materials, like animal bone, autologous bone, various metal and non-metal materials, such as gold, silver, aluminum, lead, platinum, tantalum, live alloy, stainless steel, etc., celluro, methacrylic resin, polyethylene, silicone rubber, coral, ceramic, hydroxyapatite and calcium phosphate bone cement, etc., but all these repair materials have been largely withdrawn from the history because of such and such The problem and basically out of history. PEEK is becoming a new trend in cranial repair materials because of its excellent performance. Is it feasible to use autologous cranial bone for skull repair? In principle, the use of autologous cranial bone for cranial repair has great advantages. The biggest advantage is that it is not rejection, because it is autologous cranial bone, so there is no rejection reaction, but it also has many problems. First of all, after the removal of the bone flap, it is usually necessary to carry out cranial bone repair after two to three months, and the preservation of the autologous cranial bone during this period is very problematic. If cryogenic liquid nitrogen is used for preservation, the cost is very high, and many places do not have this technology, and it may not survive after use, and it is likely to lose its activity and be absorbed; if it is placed into the human body for preservation, a second surgical area needs to be opened, and the chance of infection is very high, and it is very traumatic and risky. Therefore, autologous cranial bone is generally not used for skull repair. Technical innovation, polyetheretherketone PEEK cranioplasty Currently our team performs polyetheretherketone PEEK cranioplasty with outstanding results. The team has completed hundreds of cases of PEEK cranioplasty and has a wealth of experience and skill, and we have continued to summarize and research hundreds of cases and continue to improve and upgrade surgical techniques, and now have four technical innovations, our unique material thickness and mesh aperture design, material edge groove design and unique tissue separation and repositioning technology, which can It can protect the physiological activity of each layer of tissue, avoid temporal muscle atrophy, prevent scalp abrasion, etc., and has high postoperative comfort, good protection performance and ideal repair and plastic effect, which is highly recognized and praised by patients with cranial defects and their families.