Table 1.

Demographics

Variable	Result
n	10
Age (years)	58.9 +14.1 (42–89)
Laterality  Right  Left	40% 60%
Surgeon  1  2	20% 80%
Device  fURS  srURS	5 5
Catheterization prior to surgery (2J)	50%
Stone features  Longer diameter  Shorter diameter  Unique  Multiple	9.6 mm ±4.7 (1.6–20) 7.2 mm +5.2 (1.6–20) 70% 30%
Lithiasis site  Superior calix  Medium calix  Inferior calix  Pelvis  Proximal urether	1 2 3 3 2