extirpation of floating cartilage of knee joint

例句：

1. 1. The surgeon performed an extirpation of the tumor.
   外科医生进行了肿瘤的切除。
2. 2. The patient underwent an extirpation of his damaged leg.
   病人接受了他受损腿部的切除手术。
3. 3.The researchers conducted an extirpation of the disease in the area.
   研究人员在该地区进行了疾病的根除工作。