The superficial external pudendal artery (SEPA) axial-pattern flap.

Area of Science:

• Plastic and Reconstructive Surgery
• Anatomical Studies
• Surgical Innovation

Background:

• The need for versatile and mobile flaps in reconstructive surgery is ongoing.
• Superficial external pudendal vessels offer potential for flap design.

Purpose of the Study:

• To describe the anatomy and clinical utility of an axial-pattern flap based on the superficial external pudendal vessels.
• To evaluate the flap's mobility and applicability in various surgical scenarios.

Main Methods:

• Anatomical dissection of the superficial external pudendal vessels in 12 cadavers.
• Clinical application of the flap in 6 patients for reconstructive procedures.
• Assessment of flap mobility and ease of immobilization.

Main Results:

• Detailed anatomical description of the superficial external pudendal artery flap (SEPA flap).
• The SEPA flap demonstrated significant mobility, allowing rotation up to 180 degrees.
• Successful clinical use in 6 patients, with easier immobilization noted in hand reconstructions.
• A description of a bilateral SEPA flap technique.

Conclusions:

• The SEPA flap is a mobile and versatile axial-pattern flap.
• It is suitable for various reconstructive needs, especially in hand surgery.
• The anatomical study supports its clinical application and potential for bilateral use.