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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.
Intestinal Fistula. In an intestinal fistula, gastric fluid leaks from one part of the intestine to the other where the folds touch. This is also known as a âgut-to-gutâ fistula. Extraintestinal Fistula. This type of fistula occurs when gastric fluid leaks from your intestine to your other organs, such as your bladder, lungs, or vascular system. In an external fistula, gastric fluid leaks through the skin. Itâs also known as a âcutaneous fistula.â. A complex fistula is one that occurs in more than one organ.