Fecal Incontinence Surgery: Procedure & Recovery

Risk Factors

Key risk factors for fecal incontinence include:

• Female gender, particularly after vaginal delivery with sphincter injury
• Age above 65 with age-related sphincter muscle atrophy
• Chronic diarrhoea from IBD, IBS, or previous bowel surgery
• Neurological conditions including diabetes, multiple sclerosis, or stroke
• Prior anorectal surgery including haemorrhoidectomy or fistula repair

Who is at Risk?

Fecal incontinence is most common in women after childbirth and in elderly individuals. It affects up to 25% of women following vaginal delivery with sphincter injury. Those with longstanding diabetes affecting pudendal nerves, prior anorectal surgery, or neurological conditions are at significantly increased risk of developing symptomatic fecal incontinence.

Diagnosis

Diagnosis of fecal incontinence involves:

• Anorectal Manometry: Measures resting and squeeze pressures of the internal and external anal sphincters.
• Endoanal Ultrasound: Identifies structural defects in the internal or external anal sphincter muscles.
• Pudendal Nerve Latency (PNTML): Assesses nerve damage contributing to sphincter dysfunction and incontinence.
• Defecography: Evaluates rectal prolapse, intussusception, or rectocoele as contributing structural factors.
• MRI Pelvis: High-resolution imaging of sphincter anatomy and overall pelvic floor structure.

Treatment Options

Treatment follows a stepwise approach. Conservative measures include dietary fibre adjustment, anti-diarrhoeal agents, bowel training, biofeedback therapy, and pelvic floor physiotherapy. When conservative treatments fail, minimally invasive options include injectable bulking agents and sacral nerve stimulation. For structural sphincter defects, sphincteroplasty provides good results in appropriately selected patients.

Surgical Procedures for FI

Surgical options for fecal incontinence at Pristyn Care include:

• Sphincteroplasty (Overlapping Repair): Direct surgical repair of a torn external anal sphincter, restoring muscle continuity. Best results in women with obstetric sphincter injury.
• Sacral Nerve Stimulation (SNS): A neuromodulation device implanted near the sacral nerves to improve sphincter coordination and reduce urgency. Effective for both neurogenic and structural incontinence.
• Injectable Bulking Agents: Minimally invasive injection into the anal canal to improve sphincter closure for passive incontinence with minimal risk.
• Artificial Bowel Sphincter: An inflatable cuff placed around the anus providing voluntary continence control for severe sphincter loss.
• SECCA Procedure: Radiofrequency energy delivery to the anal sphincter to induce collagen remodelling and improve closure.
• Colostomy: Reserved as a last resort for severe, intractable cases significantly impairing quality of life.

After the Surgery

Post-operative care after fecal incontinence surgery includes:

• Pelvic floor physiotherapy and biofeedback to maximise surgical outcomes
• Dietary adjustment to maintain soft, regular stools consistently
• Sacral nerve stimulator programming adjustments during follow-up visits
• Wound care and perianal hygiene maintenance after sphincteroplasty
• Regular follow-up with anorectal manometry to assess functional improvement

Complications | What if FI is Left Untreated?

Untreated fecal incontinence has serious consequences:

• Progressive social isolation, anxiety, and depression from stigma and embarrassment
• Severe perianal skin damage including dermatitis, ulceration, and wound infection
• Urinary tract infections from perineal contamination in women
• Significant restriction of work, travel, and all social activities
• Progressive worsening of sphincter function without any targeted treatment
• Decline in overall physical and mental health and wellbeing over time