The direct success rates after the first operation which meant stone-free ureters in the lower,middle and upper ureters were 97.77%(44/45),95.00%(13/14) and 80.77%(21/26),respectively,and the mean stone-free rate was 92.79%(103/111).

• 105例(111侧)输尿管结石一次手术结石粉碎率92.；79%25(103/111)；其中下段结石97