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Objective: To define the role of laparoscopic ureterolithotomy (LU) as a primary modality for large proximal ureteral stones, we compared the outcomes of primary LU with those of ureterorenoscopy (URS), the currently established modality in this circumstance.

Materials and Methods: Among 71 patients who underwent LU in our institution between February 2005 and January 2010, 32 patients with stone size over 1.5 cm who underwent LU as a primary modality without prior shockwave lithotripsy or URS and for whom LU was conducted as a separate procedure were exclusively enrolled. Based on preoperative characteristics of patients and stones, this patient group was matched with the URS group (n = 32, rigid pneumatic lithotripter) during the same period.

Results: The LU group and the URS group were similar in age, gender distribution, body mass index, stone size (18.1 ± 4.2 versus 17.9 ± 3.6 mm; P …