A novel set of surgical instruments facilitate the procedure of laparoscopic pyeloplasty

Background Open pyeloplasty has been historically described as the gold standard for the surgical treatment of ureteropelvic junction obstruction （UPJO）, even if new techniques have recently gained a prominent role in this field. Laparoscopic pyeloplasty （LP） is not widely prevelant because of the technically challenging nature and it represents the gold standard for UPJO only in expert hands. To overcome some difficulties and technical challenges encountered during pure laparoscopic pyeloplasty, we designed a set of new instruments and assessed them using porcine model.