Prospective Observational Study on Comprehensive Effects of PEEK Cranioplasty and Titanium Cranioplasty After DC（RECEPT-DC）

The objective of this trial is to scientifically evaluate the efficacy of PEEK cranioplasty and titanium cranioplasty. The primary objective is to compare the rate of implant failure (defined as infection, implant exposure and other causes requiring removal of the implanted material) at any time within 12 months after cranioplasty. The secondary objective is to compare the complication rates and neurological function recover following cranioplasty. Complication events after cranioplasty are investigated within 6 months after surgery and neurological function is evaluated at 3, 6 and 12 months after cranioplasty.