Clinical Report: Treating Non-Healing Wounds and Perineal Sinuses Post-Proctectomy in IBD

Overview

Unhealed perineal wounds and persistent perineal sinuses (PPS) after proctectomy in inflammatory bowel disease (IBD) patients remain a significant clinical challenge, with healing rates often delayed beyond 12 months. This systematic review identified 25 studies, mostly retrospective and of low methodological quality, evaluating various medical and surgical treatments, highlighting the need for standardized classification and high-quality evidence to guide management.

Background

Since the early 20th century, unhealed perineal wounds and PPS have been recognized complications following abdominoperineal excision, especially in IBD patients. After proctectomy for perianal Crohn’s disease, up to one-third of patients experience wounds that fail to heal within a year, causing pain, discharge, and bleeding that impair quality of life. The complexity of these wounds, often involving multiple anatomical structures and sometimes osteomyelitis, necessitates accurate classification to guide treatment. Despite various described interventions, including surgical excision, flap reconstruction, and hyperbaric oxygen therapy, no consensus guidelines currently exist.

Data Highlights

The systematic review included 25 studies: 23 retrospective cohorts or case series, 1 prospective case series, and 1 expert consensus. The mean sample size was 11 patients, with an average follow-up of 32 months (range 1–275 months). Risk of bias assessment found 78% of clinical studies to be of poor quality, 17% fair, and only 4% good. No randomized controlled trials were identified. The certainty of evidence for musculocutaneous flap interventions was rated as very low by GRADE criteria.

Key Findings

• Unhealed wounds and PPS affect approximately 25-33% of patients after proctectomy for perianal Crohn’s disease at 12 months post-surgery.
• Symptoms include persistent discharge, pain, and bleeding, significantly impacting patient quality of life.
• There is considerable heterogeneity in terminology and classification systems for PPS and unhealed wounds, complicating treatment selection.
• Most available studies are retrospective with small sample sizes and poor methodological quality, limiting the strength of evidence.
• Various treatments have been described, including curettage, sinus excision, skin grafting, myocutaneous flap reconstruction, and hyperbaric oxygen therapy, but no standardized treatment guidelines exist.
• Accurate classification systems are essential but currently underutilized; five studies included classification schemes in this review.

Clinical Implications

Clinicians should recognize the high prevalence and significant morbidity of unhealed perineal wounds and PPS after proctectomy in IBD patients. Due to the lack of high-quality evidence and standardized guidelines, treatment should be individualized, potentially involving multidisciplinary teams. Accurate classification of wound pathology is critical to guide appropriate therapeutic choices and optimize outcomes.

Conclusion

Persistent perineal wounds and sinuses after proctectomy in IBD represent a complex clinical problem with limited high-quality evidence to guide management. Future research should focus on standardized classification and robust clinical trials to establish effective treatment protocols.

References

1. Miles E. 1908 -- Abdominoperineal excision of the rectum
2. Tolstedt B. -- Disability from persistent perineal sinuses
3. Watts J, Dombal F, Goligher J. 1966 -- Definition of delayed wound healing
4. TOpClass Consortium -- Classification of persistent symptoms post-proctectomy
5. NIH Quality Assessment Tool -- Risk of bias evaluation
6. GRADEpro Guideline Development Tool -- Certainty of evidence assessment