Related Experiment Video
Updated: Sep 11, 2025
Vessel-sparing Excision and Primary Anastomosis
Published on: January 7, 2019
Long-Term Risk of Reoperation After Hypospadias Surgery in Childhood: A Data-Linkage Study
Sergey Vavilov1,2, Erin Nolan3, Peter Pockney1,4
1School of Medicine and Public Health, The University of Newcastle, Newcastle, New South Wales, Australia.
Insights
About 40% of children need reoperation for hypospadias repair, often before age five. Reoperation risk decreases significantly in later decades, but certain repair types increase risk.
Area of Science:
- Pediatric Urology
- Surgical Outcomes Research
Background:
- Hypospadias repair is a common childhood surgery.
- Long-term reoperation rates and associated risk factors require further investigation.
Purpose of the Study:
- To assess the long-term risk of reoperation after childhood hypospadias repair.
- To identify risk factors influencing reoperation rates, hypothesizing repair technique as a key factor.
Main Methods:
- A retrospective cohort study of 1105 children undergoing hypospadias repair in New South Wales (1991-2006).
- Data linkage used to identify reoperations.
- Kaplan-Meier analysis assessed time-to-first reoperation, considering hypospadias severity, repair type, and persistent chordee.
Main Results:
- The overall probability of reoperation-free survival was 62% over a median follow-up of 15.2 years.
- Reoperation rates were highest in the first decade (7.3/100 patient-years) and decreased significantly in subsequent decades (1.7 and 0.6/100 patient-years).
- Higher reoperation rates were observed following multi-stage repairs (9.94), single-stage proximal repairs (5.7), and tubularized incised urethroplasty (TIP) (3.64).
Conclusions:
- Approximately 40% of children require reoperation for hypospadias, predominantly before age five.
- The risk of penile reoperation is low in the second and third decades of life.
- Risk factors for reoperation include distal hypospadias, multi-stage repairs, and single-stage proximal repairs, with TIP repair showing higher risk in distal cases.
Purpose:
We assessed the long-term risk of reoperation after hypospadias repair in childhood and identify the risk factors associated with reoperation. We hypothesised that the technique used to repair hypospadias would influence the reoperation rate.
Materials And Methods:
Consecutive children who underwent hypospadias repair in New South Wales, Australia, between 1991 and 2006 were included. The reoperations were identified using data linkages. The reoperation rate was calculated, and potential risk factors identified (hypospadias severity, type of repair, urethral plate division, and persistent chordee after degloving). Time-to-first event analyses were conducted using the Kaplan-Meier method.
Results:
One thousand one hundred five children (median follow-up 15.2 years, IQR: 3.3-17.1) with a cumulative follow-up of 16,790 patient-years were included. The rates of penile reoperations was 7.3 per 100 patient-years in the first, 1.7 in the second, and 0.6 in the third decade of life (P < .001). The highest rates of penile reoperations occurred after multistage hypospadias repair (9.94), single-stage proximal hypospadias repair (5.7), and tubularized incised urethroplasty (3.64). The overall probability of reoperation-free survival was 62%.
Conclusions:
Approximately 40% of children who require hypospadias repair require an additional corrective procedure, usually before their fifth birthday, with a low risk of penile reoperation in the second and third decades of life. The risk is higher after tubularized incised plate repair among repairs for distal hypospadias, multistage repair, and single-stage proximal repair.
