ramus osteotomy

例句：

1. 1. The patient needed a ramus osteotomy to correct his deformity.
   病人需要进行一次截骨术来纠正他的畸形。
2. 2. The surgeon performed the ramus osteotomy during the operation.
   外科医生在手术中进行了截骨术。
3. 3. The patient recovered well after undergoing a ramus osteotomy.
   经过一次截骨术后，患者恢复得很好。