GAP (Gluteal Artery Perforator) Flap
The gluteal artery perforator (GAP) flap is another sophisticated perforator flap that utilizes the skin and fat from the gluteal (buttock) region without using the gluteal muscle itself. For women who do not have enough lower abdominal tissue, or are not candidates for DIEP reconstruction (previous abdominoplasty, previous DIEP flap for unilateral reconstruction), this is another option. Like the DIEP flap all the patient’s muscle is left in place to preserve function and make recovery easier.
A breast reconstructed with the GAP flap is soft and natural as the tissue used mimics breast tissue. The buttock is left slightly flatter, but there is no great depression where the flesh has been removed. Most women have ample amount of gluteal tissue to use.
Advantages of the GAP flap include:
1. Well-hidden incision
2. Enough volume for reconstruction even in thin patients
Nipple and areolar reconstruction follow as well as minor revisionary procedures for “fine-tuning”. Scars fade substantially with time. For many women the reconstructed breast may have a more youthful appearance than their original breasts.