Robotic laparoendoscopic single-site surgery（R-LESS） ：current status in urology

Laparoendoscopic single-site surgery(LESS)is technically challenging;it can reduces instrument triangulation and robust retraction and is associated with a steep learning curve.The instruments of the daVinci  surgical system(Intuitive Surgical)are designed with seven degrees of motion mimicing the dexterity of the human hand and wrist.This inherent feature of the robotic arm provides superior ergonomics when performing LESS,especially for complex reconstructive surgery.This review analyzes the evidence supporting current and future application of robotic technology in the field of urologic LESS.