Related Experiment Video
Updated: Feb 16, 2026

The Superficial Inferior Epigastric Artery Axial Flap to Study Ischemic Preconditioning Effects in a Rat Model
Published on: January 27, 2023
Fascio-Adipo-Cutaneous Lateral Advancement Flap for Treatment of Pilonidal Sinus: A Modification of the Karydakis
Mohammad Hamdy Abo-Ryia1, Hamdy Sedky Abd-Allah2, Mahmoud Moustafa Al-Shareef2
1Gastrointestinal Surgery Unit, General Surgery Department, Tanta University Hospital, Tanta, Egypt. mhaboryiah@gmail.com.
Background:
Pilonidal sinus is a common chronic disease affecting young adults. Many surgical procedures have been developed for its treatment, but an optimal one has still not been achieved. This study presents a modification to the Karydakis operation.
Methods:
A total of 265 patients with chronic pilonidal sinus between May 2008 and May 2015 were included in this study and submitted to fascio-adipo-cutaneous lateral advancement flap as 1-day case surgery. Any Septic complication was treated firstly. Follow-up examinations were conducted during the first three postoperative months at the outpatient clinic at regular intervals and thereafter by phone calls or direct examination to check for recurrences.
Results:
Males constituted 93.6% with a mean age of 21.6 ± 7.7 year. The median disease duration was 15 months. Twenty-eight patients had recurrent disease. The mean operative time was 41.4 ± 12.7 min. The mean time out of work was 11.6 ± 4.6 days. Complications occurred in 19 patients (7.1%) in the form of seroma in six patients (2.2%), superficial wound infection occurred in nine patients (3.3%), cuticular wound disruption occurred in four patients (1.5%). All patients completed 3-months follow-up, but 48 patients were lost at variable intervals with the remaining 217 patients completed follow-up throughout the period of the study with a median follow-up of 43 months. No reported recurrence and 96.7% of the patients were satisfied about their wound.
Conclusion:
This modification is simple with low complication rate, no recurrence, and excellent patient satisfaction.

