The profunda artery perforator flap for head and neck reconstruction.

[INTRODUCTION] The profunda artery perforator (PAP) fasciocutaneous flap is underutilized in head and neck reconstruction, with advantages including ease of harvest and minimal donor site morbidity.

[METHODS] Cadaveric dissection of cutaneous perforators to origin at profunda femoris system to characterize vascular anatomy.

[RESULTS] 22 PAP flaps were studied. Each contained 1-6 cutaneous perforators originating from the profunda system, designated into A, B, or C vascular pedicle systems. Muscular perforators did not consistently extend to skin in systems A and C, but all dissections demonstrated myocutaneous perforator in system B. Average distance from groin crease to cutaneous perforators of A, B, and C respectively was 8 cm (range 3-15 cm), 11.4 cm (range 5-17 cm), and 17.5 cm (range 12.5-22 cm). Average pedicle length was 11.07 cm (range 7-16 cm), 11.78 cm (range 9-16 cm), and 11.23 cm (range 9-15 cm). Average vena comitans diameter at origin was 3.14 mm (range 1.27-4.46 mm). Average arterial diameter at origin was 2.07 mm (range 1.27-3.82 mm). Range of maximal primary closure was 6-11 cm.

[CONCLUSION] PAP free flap demonstrates reliable vascular anatomy in cadavers, with adequate pedicle length and vessel diameter. All specimens contained adequate myocutaneous perforator to support free tissue transfer.