Purpose: In order to prevent postoperative infection and recurrence of sacrococcygeal pilonidal sinus, the authors developed a modified Dufourmentel flap, involving the superior pedicles, and designed a descriptive prospective study to evaluate its efficiency. Methods: Between July 2007 and March 2014, 16 patients with sacrococcygeal pilonidal sinus were treated with an irregular quadrilateral excision and reconstruction by a modified Dufourmentel flap with superior pedicle. The duration of wound healing, presence of wound complications and permanent hypoesthesia, and recurrence rates were recorded and assessed. Results: None of the patients developed flap necrosis or wound infection postoperatively. The duration of wound healing was 7.2 ± 2.9 (range = 6–15) days. Wound dehiscence was demonstrated in only one patient (6.3%). The mean follow-up period was 4 years and 2 months (range = 4 months–8 years and 8 months), whereby no permanent hypoesthesia or recurrence was detected. Conclusion: The modified Dufourmentel flap with superior pedicle can be safely used as a treatment of sacrococcygeal pilonidal sinus, with excellent results.
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