The prevalence of urinary tract stone disease is estimated to be 2-3%. There is not any absolute prophylactic and medical therapeutic measure for urinary stone disease. But there is significant improvement in minimally invasive surgical techniques for stone removal. PCNL (Percutaneous Nephro Lithotripsy) is a minimally invasive and safe technique to treat the urinary
   calculi.

          All patients that were candidates for open surgery due to renal or upper ureteral stone, undergone operation by PCNL without flouroscopy technique.  

          62 patients(5 –71 y/o) were operated by the same technique in 12months period. In 3 cases we could not reach to pyelocaliceal system and procedure stopped. Surgery terminated successfully in all other cases and stones was removed. Multiple tracts and RePCNL in some patients required. 

        We can do PCNL without flouroscopy or with minimal X-ray exposure,especially in hydronephrotic kidneys. Thought X-ray exposure and harmful effect of that to surgeon and patient can be negotiate.