A Comparative Study Between Anterior and Posterior Pyelotomy in Transperitoneal Laparoscopic Pyelolithotomy

Large renal pelvic stones are frequently managed with percutaneous nephrolithotomy (PCNL) but laparoscopic pyelolithotomy (LPL) can be an alternative procedure when performed by skilled surgeons to achieve excellent outcomes in terms of stone free status, operative time, postoperative kidney function, hospitalization duration, and complications. there are two methods for LPL surgery : Transperitoneal (TLP) and Retroperitoneal (RLP). RLP associated with shorter mean time for oral intake, and mean hospital stay after surgery. The surgical exposure in the transperitoneal route for LP is familiar to the majority of surgeons. Also, a much larger working space is available and there are various established anatomical landmarks for performing the surgery effectively. This study introduces a modified technique that creates application of posterior pyelotomy in TLP to achieve the advantages of RLP