Limberg flap for pilonidal sinus
This technique is used for recurrent pilonidal sinuses and previous failed repairs. It is done as a day case procedure and it relies on obliterating the natal cleft thereby reducing the failure rate.
Complications: Flap failure less than 2%, infection less common
The enclosed photos show how the flap appears when it is complete
Weblink: http://www.nhs.uk/Conditions/Pilonidal-sinus/Pages/Introduction.aspx