trepanation of frontal sinus

例句：

1. 1. Thepatient underwent a trepanation torelieve pressure on his brain.
   患者接受了开颅手术以减轻对大脑的压力。
2. 2. The doctorperformed a craniotomy torepair the damaged skull.
   医生进行了开颅手术来修复受损的头骨。
3. 3. Trephination is a surgical procedure used to treatcertain neurological conditions.
   开颅手术是一种用于治疗某些神经疾病的外科程序。