Rectourethral and Pubosymphyseal Fistulas
Expert Multidisciplinary Evaluation and Complex Reconstruction
Rectourethral fistulas (RUF) and pubosymphyseal fistulas (PSF) are rare but serious complications in which abnormal connections form between the urinary tract and adjacent structures. These conditions can cause severe urinary, infectious, and quality-of-life problems and often occur after prostate cancer treatment, pelvic surgery, or radiation therapy.
Dr. Alex J. Vanni is a nationally recognized reconstructive urologist with extensive experience in the evaluation and surgical management of complex rectourethral and pubosymphyseal fistulas, including cases associated with radiation, infection, osteomyelitis, and failed prior repairs. Patients are referred nationally for his expertise in definitive, durable reconstruction.
Rectourethral Fistula Repair: Technique and Outcomes | Dr. Alex Vanni | Reconstructive Urology Boston
What Are Rectourethral and Pubosymphyseal Fistulas?
Rectourethral Fistula
A rectourethral fistula is an abnormal connection between the urethra and the rectum. This allows urine to pass into the rectum and stool or gas to enter the urinary tract, leading to infection, incontinence, and significant morbidity.
Pubosymphyseal Fistula
A pubosymphyseal fistula is an abnormal communication between the urinary tract (often the bladder neck or urethra) and the pubic symphysis, frequently associated with chronic infection and pubic bone osteomyelitis. This condition is increasingly recognized in men following prostate cancer treatment.
Both conditions are complex and require specialized reconstructive expertise.
What Causes Urinary Fistulas?
Rectourethral and pubosymphyseal fistulas most commonly occur after:
- Radical prostatectomy
- Pelvic radiation therapy
- Endoscopic prostate procedures
- Urethral or bladder neck surgery
- Prior infection or abscess
- Repeated instrumentation or failed prior repairs
Radiation-Associated Fistulas
Radiation-associated fistulas are particularly challenging due to poor tissue quality and impaired healing capacity.
What Are the Symptoms of a Urinary Fistula?
Symptoms vary by fistula type and severity but may include:
- Passage of urine through the rectum
- Fecal material or gas in the urine
- Recurrent urinary tract infections
- Severe pelvic or perineal pain
- Difficulty walking or sitting (especially with pubic bone involvement)
- Chronic drainage or infection
Because symptoms can be debilitating, prompt expert evaluation is critical.
How Are Urinary Fistulas Diagnosed?
Accurate diagnosis and operative planning require a comprehensive evaluation, which may include:
- Detailed history of prior surgery and radiation
- Cystoscopy and endoscopic evaluation
- Cross-sectional imaging (CT or MRI pelvis)
- Contrast studies to define fistula anatomy
- Evaluation for associated conditions such as urethral stricture, bladder neck contracture, or osteomyelitis
Multidisciplinary Approach
These cases often benefit from coordinated care involving multiple specialists, including:
- Reconstructive urology
- Colorectal surgery
- Infectious disease specialists
- Wound care and nutrition specialists when appropriate
How Are Urinary Fistulas Treated?
Definitive treatment almost always requires complex reconstructive surgery. Management is highly individualized and depends on fistula size, location, tissue quality, and prior treatments.
Advanced Surgical Strategies
Dr. Vanni specializes in techniques which may include:
- Transperineal or transabdominal fistula repair
- Urethral reconstruction or urethroplasty
- Bladder neck reconstruction
- Interposition of healthy tissue flaps to promote healing
- Management of associated pubic bone infection or osteomyelitis
- Staged reconstruction when necessary
The primary goals of surgery are to eliminate the fistula, restore urinary tract integrity, control infection, and improve long-term function.
Why Experience Matters in Fistula Reconstruction
Rectourethral and pubosymphyseal fistulas represent some of the most complex challenges in reconstructive urology. Successful outcomes depend on:
- Careful preoperative assessment
- Experience with radiation-injured and scarred tissue
- Coordination of multidisciplinary care
- Expertise in redo and staged reconstruction
High-volume reconstructive experience significantly improves the likelihood of durable closure and reduces the risk of recurrence.
Dr. Vanni's outcomes reflect a commitment to technical excellence, patient safety, and long-term functional recovery, even in the most challenging cases.
Fistula repair may coexist with urinary incontinence requiring subsequent treatment — read about male incontinence surgery.
National Referral Center for Complex Urinary Fistulas
Patients with rectourethral or pubosymphyseal fistulas—particularly those with prior radiation, infection, or failed repairs—are referred nationally to Dr. Vanni for expert consultation and definitive surgical management. He works closely with referring physicians to provide coordinated care and long-term follow-up.
Have Questions About Urinary Fistulas?
Get answers to the most common questions about urinary fistulas treatment, surgery, and recovery.
View Frequently Asked QuestionsWhat is a rectourethral fistula?
A rectourethral fistula (RUF) is an abnormal connection between the urethra and rectum. This allows urine to pass into the rectum and stool or gas to enter the urinary tract, causing recurrent infections, pneumaturia (gas in urine), fecaluria (stool in urine), and urinary leakage from the rectum.
What causes rectourethral fistulas?
The most common cause is prior prostate cancer treatment, particularly surgery or radiation therapy. Other causes include inflammatory bowel disease, pelvic trauma, infection, and complications from other pelvic procedures. Radiation-associated fistulas are particularly challenging.
What is a pubosymphyseal fistula?
A pubosymphyseal fistula is an abnormal connection between the urethra and the pubic bone, often associated with chronic infection (osteomyelitis) of the bone. This typically occurs after pelvic fractures, prior urethral surgery, or chronic catheter use.
How are urinary fistulas diagnosed?
Diagnosis involves cystoscopy, contrast imaging studies (retrograde urethrogram, cystography, MRI), and sometimes examination under anesthesia. Determining the exact location and size of the fistula, presence of radiation damage, and bone involvement is critical for planning repair.
When should a fistula be repaired?
Timing depends on the cause and situation. Post-surgical fistulas should be allowed to mature for 3-6 months before repair. Radiation-associated fistulas require careful assessment of tissue quality. Infections and inflammation must be controlled before definitive repair.
What does fistula repair surgery involve?
Surgery typically involves complete excision of the fistula tract, closure in multiple layers, and interposition of healthy tissue (muscle or fat flaps) between the urethra and rectum to prevent recurrence. Complex cases may require temporary urinary and fecal diversion.
What is the success rate of fistula repair?
Success rates vary significantly based on cause and complexity. Simple post-surgical fistulas achieve a 98% success. Radiation-associated fistulas are more challenging with a 86% success rates. Multiple prior failed repairs may have lower success rates but can still be repaired successfully.
How long is recovery after fistula repair?
Recovery typically requires 4-6 weeks of restricted activity. A urinary catheter remains in place for 4-6 weeks. Temporary colostomy, if needed, is typically reversed 3 months after successful repair. Complete healing takes several months.
How long does fistula repair surgery take?
Rectourethral fistula repair typically takes 2–5 hours, depending on the size, location, and complexity of the fistula. More complex cases involving prior radiation or multiple prior repairs may take longer.
How long does fistula repair recovery take?
Recovery from rectourethral fistula repair requires 4-6 weeks of restricted activity. The catheter remains in place for 2-4 weeks, with cystoscopic evaluation at 6 weeks to confirm successful fistula closure before catheter removal.
Can rectourethral fistulas heal without surgery?
Small fistulas occasionally close with prolonged catheter drainage, but most established fistulas require surgical repair for definitive healing. Dr. Vanni performs specialized techniques including transperineal repair with gracilis muscle interposition for complex cases.
Urinary Fistula Repair: Success Rates & Clinical Outcomes
The management of complex urinary fistulas requires a multidisciplinary, evidence-based approach informed by peer-reviewed surgical literature, which guides Dr. Vanni's treatment planning.
Treatment Outcomes at a Glance
Success Rate
98% success for post-surgical fistulas; 86% for radiation-associated cases
Success rates reflect published outcomes from peer-reviewed research. View Dr. Vanni's publications on PubMed →
Surgery Duration
2–5 hours depending on complexity
Recovery
4–6 weeks restricted activity; catheter in place 4–6 weeks during healing
Post-Operative Instructions
Access your recovery video and written post-operative instructions from Dr. Vanni.
View Post-Op Instructions →Questions about your care? Call (781) 744-8762
Related Conditions
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Schedule a Consultation
If you have been diagnosed with a rectourethral or pubosymphyseal fistula, or are experiencing symptoms suggestive of these conditions after prostate or pelvic surgery, expert evaluation can help determine the safest and most effective treatment strategy.
Selected References & Authoritative Sources
The clinical information on this page reflects current guidelines from major urologic societies and the peer-reviewed literature on reconstructive urologic surgery. For deeper reading:
- Rectourethral fistula management — AUA Update Series and society reviews
- Current peer-reviewed literature on this topic — PubMed search
- Dr. Vanni's publications on this topic — PubMed
- Trauma and Urologic Reconstructive Network of Surgeons (TURNS)
This page is for patient education and does not replace individualized medical advice. To discuss your specific situation, please contact Dr. Vanni's office at (781) 744-8762.