Figure 1: Pictorial depiction of the (a) classic PATIO technique (the UCF tract is meticulously dissected from the skin down to the urethral wall and inverted into the urethral lumen. The tract is kept aligned in the direction of the urinary stream). (b) Modified PATIO wherein the tract is ligated at the base in addition to inversion into the urethral lumen, (c) Ligation of the UCF base only. PATIO: preserve the tract and turn it inside out, UCF: Urethrocutaneous fistula