sphincteroplasty

例句：

1. 1. The patient underwent anal sphincteroplasty to treat his chronic anal fissures.
   患者接受了括约肌成形术，以治疗他的慢性肛裂。
2. 2. During the procedure, the doctor made an incision in the patient's anus and then performedanal sphincteroplasty.
   在手术过程中，医生在患者的肛门处做了切口，然后进行了括约肌成形术。
3. 3. The patient reported significant improvements in his symptoms after the surgery, which included anal sphincteroplasty.
   手术后，患者报告了他的症状有显著改善，包括括约肌成形术。