The Efficacy of Combining Platelet-rich Plasma With Crystallized Phenol in Pilonidal Sinus Disease Treatment in Children: A Double-blind Single-center Randomized Controlled Trial

Upon their arrival at our pilonidal care clinic, patients commenced a regimen of manual shaving of the gluteal cleft either weekly or bi-weekly. Laser epilation therapy was initiated at the earliest opportunity, conducted every 6 to 8 weeks, aiming for a hair reduction of over 90%. For patients presenting with a pilonidal abscess, an initial procedure of incision and drainage was performed, followed by antibiotic therapy. In the outpatient clinic, patients were placed in a prone position, and the area was sterilized with a povidone-iodine solution.

Anaesthesia local: The skin and subcutaneous tissues surrounding the PSD area, including the sinus openings, receive local anesthesia with 5 ml of lidocaine (20 mg/ml) mixed with epinephrine (0.0125 mg/ml).

Zone keeps clean: The area surrounding the PSD is thoroughly disinfected with povidone-iodine solution, covering a minimum area of 20 square centimeters to ensure adequate local disinfection.

Irrigation with isotonic solution: The wound is washed with sterile isotonic solution.

Zero hair (removing hair and curettage): For sinuses measuring ≤ 3 mm in diameter, dilation is performed using a mosquito clamp (BH-109, Aesculap®, Center Valley, PA, USA). Hair within the sinus is removed. After the complete removal of hair from the area, the granulation tissue is then excised through curettage.