An observational study in Sacrococcygeal Pilonidal Sinus, sponsored by University Hospital, Angers. Not yet recruiting. Open to participants aged 0 Years to 18 Years. Per ClinicalTrials.gov, last updated 2026-03-13.
Sponsored by University Hospital, Angers · Observational
Pilonidal sinus disease (PSD) in children is associated with significant morbidity and recurrence risk. Multiple surgical techniques are used, including excision with open healing, primary midline closure, off-midline closure, flap reconstruction, and minimally invasive approaches. However, high-quality comparative data in pediatric populations are limited, and adult data cannot be directly extrapolated.
This single-center retrospective cohort study aims to compare the effectiveness of different surgical techniques used for curative treatment of PSD in children treated at CHU Angers between January 1, 2015 and March 31, 2025.
The primary endpoint is surgical failure at 2 months, defined as absence of complete wound healing or early recurrence. Secondary outcomes include postoperative complications, time to healing, pain outcomes, length of hospital stay, and recurrence at 1 year.
Results are expected to help optimize institutional management strategies and contribute to pediatric-specific evidence.
This is a single-center retrospective observational cohort study conducted in the Departments of Pediatric Surgery and Visceral Surgery at CHU Angers, France.
All consecutive patients under 18 years of age who underwent surgical treatment for pilonidal sinus disease between January 1, 2015 and March 31, 2025 will be included.
Surgical techniques analyzed include:
Data will be extracted from medical records and anonymized prior to statistical analysis.
109 studies on the registry are indexed under Pilonidal Sinus; 32 are open to participants now.
This study's planned enrollment of 90 is below the median of 145 across 37 observational studies indexed under Pilonidal Sinus.
Browse Pilonidal Sinus studies →University Hospital, Angers is the lead sponsor of 478 studies on the registry; 120 are open to participants now.
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Pediatric population
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Exclusion Criteria:
Intentional traditional treatment whitch consists in wide excision of the pilonidal sinus, and progressive healing of the wound thanks to daily dressing changes until complete closure is obtained.
Procedure: Surgical treatment for pilonidal sinus disease, including various techniques including excision with or without primary closure, or endoscopic techniques.
Alternative technique using an immediate closure of the wound with layer of stiches, and regular dressings
Procedure: Surgical treatment for pilonidal sinus disease, including various techniques including excision with or without primary closure, or endoscopic techniques.
Alternative technique using an immediate closure of the wound with layer of stiches, completed with negative pressure therapy dressing, allowing for a fater recovery while requiring less dressing survey and changes.
Procedure: Surgical treatment for pilonidal sinus disease, including various techniques including excision with or without primary closure, or endoscopic techniques.
Surgical treatment for pilonidal sinus disease, including various techniques including excision with or without primary closure, or endoscopic techniques.
Procedure: Surgical treatment for pilonidal sinus disease, including various techniques including excision with or without primary closure, or endoscopic techniques.
curative treatment of pilonidal sinus, consisting in a wide excision followed by open healing or direct closure of the wound +/- negative pressure therapy dressing. Alterantivelly, an endoscopic procedure to destroy the pilonidal sinus can be performed.
Failure rate
Definition of failure: * Absence of complete wound healing at 2 months, OR * Clinical recurrence of pilonidal sinus within 2 months
Time frame: 2 months after surgery
Postoperative complications
* Early (\<30 days) and late complications * Graded according to Clavien-Madadi classification Through study completion, average 6 month
Time frame: Up to 1 year
Time to complete wound healing
time in months
Time frame: Up to 1 year
Length of hospital stay
duration of hospital stay in days
Time frame: at hospital discharge
Postoperative pain duration
Time frame: Up to 30 days
Postoperative pain Intensity
Time frame: Up to 30 days
Analgesic consumption for postoperative pain
morphine equivalent dose
Time frame: Up to 30 days
Predictive factors for recurrence
bivariate and multivariate analysis
Time frame: Up to last follow-up
Recurrence rate
Through study completion, average 6 month
Time frame: Up to 1 year
No study locations are listed for this record.
Plan to share: Undecided
No publications or documents are linked to this record.
This study is not yet recruiting, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.
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