MP15-09 DISPLACING STONES FROM THE LOWER POLE DURING RETROGRADE INTRARENAL SURGERY (RIRS): IMPROVED STONE FREE RATES OR A WASTE OF TIME? A PROSPECTIVE RANDOMIZED STUDY

INTRODUCTION AND OBJECTIVE:Renal stones located in the lower pole (LP) are more difficult to access, fragment, and are more likely to cause ureteroscope damage and result in residual fragments (RF)...