The Flip-Back Myocutaneous Advancement Flap for Periocular Reconstruction.

[PURPOSE] To present a novel myocutaneous flap for anterior lamellar reconstruction.

[METHODS] Retrospective interventional case series of consecutive patients who underwent Mohs reconstruction using the flip-back flap. Operations were performed by a single surgeon (DTT) between January 2012 and May 2016. For lower eyelid defects, an extended subciliary incision was made and a skin-muscle flap developed and suspended in the manner of lower eyelid blepharoplasty. A back-cut was used to develop a pedicle from the overlapping tissue, which was then rotated 180 degrees into the defect. A similar method was employed in an inverted manner for upper eyelid defects. Postoperative eyelid function, cosmesis, complications, and need for further interventions were assessed.

[RESULTS] Ten patients-8 with lower and 2 with upper eyelid defects-were reconstructed using this method. Mean follow up was 18.3 ± 15.5 months with a minimum interval of 4 months. Despite the 180-degree rotation of a relatively narrow pedicle, none of the patients experienced flap necrosis. Postoperative function and cosmesis was satisfactory, with no tissue puckering, notching, or symptomatic retraction. No antimetabolite/steroid injection or surgical revision was required.

[CONCLUSIONS] The flip-back flap expands the armamentarium of the periocular reconstructive surgeon. Its particular forte is in addressing broad and relatively shallow anterior lamellar defects where sufficient tissues are not available for transposition via a uni- or bipedicle flap. By leveraging the robust periocular vascular plexus and defying traditional guidelines governing pedicle formation and rotation, it permits creation of a local flap in cases where skin grafts or extensive Mustarde-style flaps might otherwise be required.The flip-back myocutaneous flap offers a novel alternative to skin grafting or more extensive cheek rotational flaps for reconstruction of challenging anterior lamellar defects involving the eyelids and adjacent periocular tissues.