amputation trauma of penis

例句：

1. 1. The patient needed to have his leg amputated due to severe infection.
   由于严重的感染，病人需要截肢。
2. 2.The surgeon performed an amputation on the injured arm.
   外科医生对受伤的手臂进行了截肢手术。
3. 3.The amputation was successful and the patient recovered quickly.
   截肢成功，患者恢复迅速。