Risk factors for postoperative adverse outcomes in patients with high anal fistula undergoing modified TROPIS procedure combined with Parks’ fistulotomy with seton: a retrospective study - Takeaways - MDSpire

Risk factors for postoperative adverse outcomes in patients with high anal fistula undergoing modified TROPIS procedure combined with Parks’ fistulotomy with seton: a retrospective study

  • By

  • Benfan Yin

  • Jiaying Li

  • Buqiang Chen

  • Xingwang Liang

  • June 1, 2026

  • 0 min

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  • 1

    The study analyzed 218 patients undergoing modified TROPIS with Parks’ fistulotomy and seton for high anal fistula from May 2022 to May 2024.

  • 2

    Postoperative adverse outcomes occurred in 22.5% of patients, including recurrence (8.3%), incontinence (6.9%), delayed healing (10.1%), and major complications (3.7%).

  • 3

    Five independent risk factors for adverse outcomes were identified: diabetes mellitus, horseshoe extension, internal sphincter incision >50%, operative time >60 min, and BMI ≥ 28 kg/m2.

  • 4

    The risk stratification model indicated that 31.2% of patients were high-risk, with an adverse outcome rate of 41.2% compared to 14.0% in low-risk patients.

  • 5

    The findings highlight the need for external validation in larger cohorts before clinical implementation of the modified TROPIS approach.

Original Source(s)

Risk factors for postoperative adverse outcomes in patients with high anal fistula undergoing modified TROPIS procedure combined with Parks’ fistulotomy with seton: a retrospective study

  • by Benfan Yin, Jiaying Li, Buqiang Chen, Xingwang Liang

  • June 1, 2026

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