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Horseshoe fistula is one of the most. complex and potentially morbid. conditions faced in a modern anorectal. surgery. Hanley, 1965 reported his. original procedure for horseshoe fistula. which involved complete division of the. posterior 12 o'clock sphincter mechanism.
A fistula is an abnormal, tube-like connection that forms between two organs or vessels that are lined with epithelial cells. Fistulas are generally the result of a disease condition, but artificial fistulas may also be surgically created for therapy.