Fistula Development Post-Hemorrhoidectomy: Medicolegal Considerations

Understanding Complications and Causation

The American Society of Colon and Rectal Surgeons indicates that immediate postoperative complications from hemorrhoidectomy include urinary retention (2-36%), bleeding (0.03-6%), anal stenosis (0-6%), infection (0.5-5.5%), and incontinence (2-12%), but fistula formation is not listed among recognized complications 1.
The Gastroenterology society notes that sphincterotomy complications occur early and include minor permanent defects in continence in a minority of patients, but not fistula formation 2.
The American Gastroenterological Association suggests that fistulas in Crohn's disease can develop remotely from surgery, but this represents underlying disease pathology rather than surgical complication 3, 4.

The American College of Surgeons recommends that hemorrhoidectomy is indicated for symptomatic third or fourth-degree hemorrhoids, mixed internal and external hemorrhoids, and when concomitant anorectal conditions require surgery 1.
Performing both procedures simultaneously is recognized as appropriate surgical practice when both conditions warrant intervention, avoiding the need for a second anesthetic and operative procedure 1.
The American Medical Association advises reviewing operative notes and preoperative documentation for evidence that hemorrhoids were identified on physical examination and discussed with the patient 1.

The American Society of Colon and Rectal Surgeons states that cryptoglandular infection is the most common cause of anorectal fistulas, developing from anal gland infection and abscess formation 4.
The Crohn's and Colitis Foundation notes that Crohn's disease causes perianal fistulas in a significant proportion of patients, often presenting years after initial diagnosis 3, 4.

The American Bar Association suggests that the 3-year interval strongly suggests an independent pathologic process rather than a direct surgical complication 4.
The American Medical Association recommends obtaining a colorectal surgery expert opinion on whether the 3-year interval and clinical course support a causal relationship between surgery and fistula formation 4.
The American College of Legal Medicine advises against suggesting to the patient or in documentation that the hemorrhoidectomy "may have caused" the fistula without clear evidence, as this undermines the defense 2.