Conclusions: The ureteral dilatation and the ureter ureteroscope inserting into the ureter under the guide of ureteral staff were the keys of success of lithotomy.

• 结论:吊瓶加注射器灌注、未行输尿管扩张、无引导导丝指示、未置输尿管引流是造成输尿管损伤的重要原因。输尿管扩张术和在引导导丝指示下进镜是手术成功的关键。