Anoderm V-Y Advancement Flap

Repair of an anal fistula involves covering the internal opening to prevent ongoing communication between the anus and the fistula tract. If the internal opening is low in the anal canal an anoderm V-Y advancement flap is preferred using a flap of external anal skin to cover the internal opening. This repair also involves repairing the defect in the sphincters and cleaning (curetting) or excising the fistula tract.

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