Efficacy of a new surgical technique: Mohan's flap for pilonidal sinus defect closure

Abstract

Background: Pilonidal sinus is a common disease frequently encountered in the outpatient department. We are presenting our clinical outcomes with excision of the sinus followed by a local flap procedure, Mohan's rotation and advancement flap for its reconstruction. Materials and Methods: In this technique, patients underwent wide local excision and rotation and advancement flap. Over 3 years, seventy patients underwent pilonidal sinus defect closure with this technique. The size of the defect ranged between 4 cm to 10 cm in its greatest dimension. Results: Tension-free and durable closure of the defect was achieved with good obliteration of the depth in the natal cleft. Surgical wounds healed satisfactorily, except for 11% of the patients who developed seroma. Defects closed with similar neighboring skin provided good skin match, with superior cosmetic results. No recurrence was observed during the study period necessitating secondary surgery. Conclusions: The rotation and advancement flap was found to be a useful technique for the treatment of pilonidal sinus with nil recurrence rate and early return to work.

Keywords

• pilonidal sinus
• rotation and advancement flap
• mohan's flap