Craniosynostosis is a common neurosurgical disorder, and there are many cases of craniosynostosis due to traffic accidents, production safety accidents, or craniocerebral disorders that are treated with craniotomies. Cranial defects can have many adverse effects on the body, so cranial repair should be carried out as soon as possible. Does cranial repair help the brain? Yes, timely cranial repair surgery is a very good protection for the brain and helps a lot in the later stages of recovery. This is because after the cranial defect, it causes incomplete cranial cavity, unstable intracranial pressure, and changes in the intracranial environment will also adversely affect cerebrospinal fluid circulation, blood circulation, etc., and the operation of cerebral nerve function may be impaired, which will result in a series of craniosynostosis syndromes. Timely cranial bone repair is to rebuild a closed and complete cranial cavity environment, to ensure the normal cerebrospinal fluid circulation and blood circulation in the skull, to provide a safe and stable environment for the brain, which is of great significance to the recovery of the brain and the normal function of the brain. Therefore, it is recommended to carry out cranial bone repair as soon as possible after the occurrence of cranial defects. Ms. Wang from Shanxi suffered from severe cranial trauma in a car accident, and underwent “left subdural hematoma removal + debridement decompression” in the emergency room of the local hospital, which saved Ms. Wang’s life in time. However, after the operation, Ms. Wang was left with a large cranial defect on the left frontotemporal top, with a defect area of about 11cm*11cm, half of her head collapsed and deeply sunken, which was very unattractive. This had a great impact on Ms. Wang both physically and psychologically. Her limb movement is unfavorable, her mood is particularly depressed, and she has to wear a hat and cover herself tightly when she goes out. Therefore, it is urgent to do cranial repair as soon as possible. Later, the family after continuous inquiries to understand, brought Ms. Wang to Beijing for treatment. After receiving her, we made a detailed diagnosis and assessment of her condition, customized the PEEK material for her, and successfully performed PEEK cranioplasty for her. After the surgery, Ms. Wang recovered particularly well, the collapsed part of her head was bulging again, restoring the original roundness and fullness, and she was in a joyful mood, and her limbs were more mobile than before. She said she was very grateful to Director Mu and Dr. Yang for their careful treatment and care. The PEEK cranioplasty we carry out uses advanced polyether ether ketone PEEK as the cranial bone repair material, which can achieve good shaping effect, and its performance is very close to that of autologous cranial bone, with a high degree of comfort and strong protection; in addition, we also continue to carry out the technical improvement and upgrading and the optimization of the design of the material, and the introduction of the concept of cosmetic plastic surgery, which has achieved outstanding results in clinical practice, and has gained the recognition of the vast number of patients and the praise. favorable comments.