The Role of Platelet-rich Plasma Local Injection as Treatment in Improvement of Pilonidal Sinus Surgery Outcomes

April 30, 2026 updated by: Mohamed Yassin Osman, Fayoum University

Assessment of the Role of Platelet-rich Plasma Local Injection as an Additional Treatment in Improvement of Pilonidal Sinus Surgery Outcomes

The aim of the present study is to find How Platelet-rich plasma treatment improves postoperative recovery in patients with pilonidal sinus disease.

Study Overview

Detailed Description

Pilonidal sinus disease is a chronic inflammatory condition of the skin and subcutaneous tissue that typically arises from hair follicles in the natal cleft of the sacrococcygeal region. The aetiology is debated but theorised to be a result of either the obstruction and subsequent inflammation of hair follicles, or acquired from hair penetrating through the skin into subcutaneous tissue.

It is a common problem affecting 26/100,000 of the general population, with an incidence of 1.1% in young adult males. It is a troublesome disease for patients, with negative impact on quality of life, mood, employment and self-image. It also results in a significant burden for the healthcare service, with high rates of recurrence and readmission following surgery. Definitive surgical management of Pilonidal sinus disease is challenging and remains a contentious issue. The aim of surgery is for the complete excision of affected tissue followed by prompt wound healing with a minimal recurrence rate. Numerous surgical procedures have been described for this purpose without a clear consensus on an optimal approach . Following excision, options for dealing with the resulting defect include healing by secondary intention, midline primary closure or lateral closure by a variety of flap techniques. The use of Platelet-rich plasma involves a complex network of molecular events which accelerate tissue regeneration due to its richness in growth factors plus a variety of biologic mediators. Platelet-rich plasma is an autologous product studied since the late 70s. It has been used in plastic and orthopedic surgery. It has a high concentration of platelets and growth factors (VEGF, PDGF, IGF-1, EGF). Platelets are activated and the suspension is applied to the desired location, stimulating vascular proliferation and promoting tissue healing. Platelet-rich plasma has more concentrated platelets than normal plasma (approximately 150-400×103 cell/dL). The presence of GFs in Platelet-rich plasma such as transforming growth factor-β, insulin-like growth factor1 co-stimulate the stem cells and fibroblasts secretions and promotes the fibrin matrix formation which effectively drive the healing process, induces regenerative response and lead to the damage structure repair in recovery of Pilonidal sinus disease disease. The aim of the present study is to find How Platelet-rich plasma treatment improves postoperative recovery in patients with pilonidal sinus disease.

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Al Fayyum, Egypt
        • Fayoum University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients with chronic pilonidal sinus .
  • Patients with recurrent pilonidal sinus.
  • Patients with large, painful pilonidal cyst.
  • Patients with multiple sinus tracks.

Exclusion Criteria:

  • High risk for general anesthesia.
  • Patients with high fever (39 C ).(active infection)
  • Patients with bleeding rash around the wound .(inflammatory skin conditions)
  • Patients with infected pilonidal sinus.
  • Patients with autoimmune skin diseases.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group A( Platelet-rich plasma group)
Group A : patients who are undergoing excision of pilonidal sinus disease and followed by Platelet-rich plasma treatment.
patients who are undergoing excision of pilonidal sinus disease and followed by Platelet-rich plasma treatment
Placebo Comparator: Group B (control group)
Group B: patients who are undergoing excision of pilonidal sinus disease and not followed by Platelet-rich plasma treatment.
Group B: patients who are undergoing excision of pilonidal sinus disease and not followed by Platelet-rich plasma treatment.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Incidence of healing rate of the wound (dehiscence)
Time Frame: One month postoperative
One month postoperative

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of complications : like drainage state , wound infection & bleeding
Time Frame: one month postoperative
Complications : like drainage state , wound infection & bleeding
one month postoperative

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 30, 2023

Primary Completion (Actual)

March 30, 2025

Study Completion (Actual)

May 30, 2025

Study Registration Dates

First Submitted

April 25, 2026

First Submitted That Met QC Criteria

April 30, 2026

First Posted (Actual)

May 5, 2026

Study Record Updates

Last Update Posted (Actual)

May 5, 2026

Last Update Submitted That Met QC Criteria

April 30, 2026

Last Verified

March 1, 2023

More Information

Terms related to this study

Other Study ID Numbers

  • SCCREIRB-MEDICINFAYOM-GU-001-0

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

It will be available if it needed

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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