What position is required for surgery involving lower pilonidal sinus excision?

The jackknife position, also known as the Kraske position, is specifically used for procedures involving the posterior aspect of the body, such as lower pilonidal sinus excision. In this position, the patient is placed on their abdomen with the hips elevated and the torso angled down, which provides optimal access to the sacrococcygeal area. This angling allows the surgeon to have better visibility and access to the pilonidal sinus, facilitating a more effective excision while also helping to reduce the risk of complications.

Additionally, the jackknife position helps to minimize pressure on the abdomen, which is particularly beneficial during operations in that region, as opposed to other positions like supine or Trendelenburg, which would not provide the same level of access and visibility for this type of surgery.