A Young Male complained of intermittent pain , swelling and discharge at the base of spine. He also had episodes of fever and repeated abscesses that had burst spontaneously , in recent past. By occupation , he is a jeep driver. On physical examination, diagnosis of pilonidal sinus was made. Which flap-based procedure is used for pilonidal sinus surgery?
Rhomboid flap
Circular flap
Free flap
Rotational flap
Pilonidal sinus surgery - excision of pilonidal sinus and cyst and repair of defect by flap. Flaps used: 1. Limber's flap 2.Karydakis flap 3. Rhomboid flap 4. Bascom procedure