pseudosacrum

例句：

1. 1. The patient's condition was complicated by a pseudosacral fracture.
   患者的病情复杂，伴有假骶骨骨折。
2. 2.The surgeon performed a successful reattachment of the pseudosacrum.
   外科医生成功地重新连接了假骶骨。
3. 3.Due to the severity of the injury, the patient had to undergo surgery on the pseudosacrum.
   由于伤势严重，患者不得不对假骶骨进行手术。