Fistulectomy with primary sphincter reconstruction

  • Steffen Seyfried
  • Dieter Bussen
  • Andreas Joos
  • Christian Galata
  • Christel Weiss
  • Alexander Herold
Original Article
  • 6 Downloads

Abstract

Aim

Despite modern medical techniques, anatomically proximal (high) anal fistulas are still a challenge in colorectal surgery. In previous years, the standard of care was complete fistulectomy with a high rate of continence disorders. Over the past 20 to 30 years, sphincter-saving procedures have gained wide acceptance. They represent the technique used in these cases. Additionally, many patients received indefinite treatment, namely the placement of a seton to maintain surgical drainage. The main problem with all fistula surgical possibilities is the high recurrence rate of 30 to 50% in flap procedures and 100% persistence in seton treatments. In recent years, a direct repair (primary reconstruction) in distal fistulas was instigated and shows excellent results. It allowed our technique for proximal (high) anal fistulas to evolve.

Method

All patients who underwent surgery at the University Medical Center Mannheim, Department of Colo-proctology (from 06/2003 to 11/2015), were retrospectively evaluated using a prospective database. Patients who underwent fistulectomy with primary sphincter reconstruction were all included.

Results

The primary healing rate, after a mean follow-up of 11 months (7 to 200 months), was 88.2% (374 of 424). Taking into account revisionary surgeries with secondary sphincter repair, this rate reaches 95.8% (406 of 424). Factors such as gender and fistula location as related to the sphincter had significant influence on the study outcome, whereas variables such as the amount of reconstructed muscle (in mm), number of revisions, patient age, other anal operations, and concomitant medication did not. The incontinence of a subgroup of 148 patients was evaluated in detail by way of a questionnaire. Even at a preoperative baseline, 9.6% of those patients reported some minor degree of continence disorders. After the procedure, incontinence disorders were observed in 34 patients (23.0%), with 23 of these patients suffering from flatus incontinence (15.5%), 10 patients from liquid incontinence (6.8%), and 1 patient from solid fecal incontinence.

Conclusion

Fistulectomy with primary sphincter reconstruction is a feasible procedure resulting in a low recurrence rate. No other procedure has shown better results in transsphincteric fistulas. Continence disorders seem to be of minor relevance/consequence for these patients.

Keywords

Anal fistula Fistulectomy Primary reconstruction Continence Seton Recurrence 

Notes

Compliance with ethical standards

The study was approved by the local ethics committee (2017-819R-MA). All patients have given their informed consent to participate.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of SurgeryUniversity Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg UniversityMannheimGermany
  2. 2.Deutsches End- und Dickdarm-ZentrumMannheimGermany
  3. 3.Abteilung für Medizinische Statistik, Biomathematik und InformationsverarbeitungMedizinische Fakultät MannheimMannheimGermany

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