Laparoscopic surgery of the upper urinary tract has reduced the morbidity related to large abdominal incisions and has resulted in significant advantages over open surgery. Nevertheless, the pursuit for even more minimally invasive alternatives to laparoscopy has led to the concept of scarless surgery and the approach of laparoendoscopic single-site surgery (LESS). LESS is currently a feasible approach for the majority of kidney surgical procedures, and there is intense debate regarding its efficiency and advantages. In the present review of the literature, the current status of upper urinary LESS and its advantages and disadvantages, as well the technological and technical evolution, are presented.
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