periosteotome

例句：

1. 1. The surgeon used a periosteal elevator to remove the bone fragments.
   外科医生使用一个骨外膜提升器来移除骨碎片。
2. 2.During the surgery, the periosteal flap was elevated and repositioned.
   手术期间，骨外膜瓣被提起并重新定位。
3. 3. The patient's condition improved significantly after the periosteal grafting procedure.
   患者在接受骨外膜移植手术后情况显著改善。