Table 2 Operative characteristics of patients

Operative times (minutes)

118.87 ± 27.12

121.54 ± 26.73

0.541

Blood loss (ml)

125.55 ± 36.70

124.78 ± 34.88

0.340

Complications

of surgery

Post-operative fever (> 38.5 C)

2

1

0.918

Urosepsis

1

2

Urine leakage

2

1

Significant hemorrhage

1

2

Blood transfusion

1

1

Initial SFR (n)%

(26)78.78%

(27) 81.81%

0.694

Final SFR (n)%

(29) 87.87%

(30) 90.9%

0.658

Ancillary treatment

flexible ureteroscopic lithotripsy

3

2

0.921

MPCNL

2

2

ESWL

2

2

Hospitalization time (day)

6.71 ± 1.12

6.66 ± 1.10

0.724