pyelotomy

例句：

1. 1.The patient needed surgery to repair the damaged kidney.
   患者需要手术来修复受损的肾脏。
2. 2.The surgeon performed a pyelotomy to relieve the patient's pain.
   外科医生进行了一个肾盂切开术以缓解患者的疼痛。
3. 3. The procedure was successful and the patient recovered quickly after the pyelotomy.
   该手术成功，患者在肾盂切开术后迅速康复。