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Uptodate Reference Title
Ligation of the intersphincteric fistula (LIFT) procedure
Ligation of the intersphincteric fistula (LIFT) procedure
This illustration shows the internal and external openings of the fistulous tract. A clamp is inserted under the tract and the fistula is ligated with a suture. The external opening is curetted and remains open. The lateral view shows the relationship of the ligated internal opening to the anatomy and external opening of the fistula.