retroperitoneal fixation

例句：

1. 1. Thepatient underwent a retroperitonealfixation for her abdominal tumor.
   患者因腹部肿瘤接受了腹膜后固定手术。
2. 2.The surgeon performed a retroperitoneal fixation to stabilize the fracturedbone.
   外科医生进行了腹膜后固定手术，以稳定骨折的骨头。
3. 3. Thepatient's recovery was complicated by theneed for a retroperitonealfixation.
   患者的康复过程复杂，需要接受腹膜后固定手术。