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We found Lithoclast with ultrasonic device was more efficient in stone clearance rate than pneumatic device (mean difference=8.23, 95% CI 4.99-11.47). The same situation was applied to the comparison between Lithoclast with ultrasonic device and ultrasonic device (mean difference=13.02, 95% CI 4.57-21.46). Combined lithotripter was more efficient in clearing stones than pneumatic or ultrasonic device alone. However, when it came to stone-success rate, no obvious superiority was seen in combined one. Combined lithotripter was more efficie