Materials and Methods: In 2 years from December 31th 2016 to December 31st 2018, seventy-seven patients suffering from TCC bladder tumors with indication of radical cystectomy had transurethral resection of bladder tumor (TURBT) for diagnosis followed by robot-assisted radical cystectomy and simple urinary diversion or extracorporeal or intracorporeal orthotopic ileal neobladder using the robot da Vinci™ Si system with 4th arm.