Results Success was achieved with 22.For the renal sinus cohered closely, separating it was very difficult, operation changed from intrasinsal pylolithotomy to nephrolithotomy in 1.

• 结果本组手术成功痊愈22例,1例因肾窦粘连紧密,分离困难,改行肾实质切开取石术,2例出现并发症:1例双J管移位,1例术后出现肾盂输尿管交界闭锁。