Case report of stacked intercostal artery perforator flaps: a novel technique using anterior and lateral intercostal artery perforator flaps for full autologous breast reconstruction post-mastectomy

Surgery is the mainstay of curative treatment for breast cancer with mastectomy offering the lowest risk of local recurrence. Post-mastectomy reconstruction options include autologous flaps and/or implants. Autologous flaps are commonly harvested from various areas, including rectus abdominis muscle, latissimus dorsi muscle, gracilis muscle and gluteal areas. While good cosmetic outcomes are often achieved, donor site morbidity and long patient downtime remain an issue. The intercostal perforator flaps have fewer of these problems but it often does not have sufficient volume for full reconstruction after mastectomy. Intercostal perforator flaps were developed for volume replacement after breast-conserving surgery. These perforator flaps are not used for full autologous reconstruction after mastectomy as the volume from a single perforator flap is often inadequate. Hence, the authors describe the first report of a novel approach of combining the anterior intercostal artery perforator (AICAP) flap and lateral intercostal artery perforator (LICAP) flap, the stacked intercostal artery perforator (STICAP) flaps, for full autologous reconstruction following an areolar-sparing mastectomy. Our patient is a 76-year-old lady diagnosed with a left breast 6 o'clock retro-areolar invasive ductal carcinoma measuring 2.8 cm x 1.6 cm x 2.3 cm. The patient underwent a left breast areolar-sparing mastectomy and axillary sampling followed by immediate STICAP (AICAP and LICAP) flaps reconstruction which achieved an excellent aesthetic appearance and high level of patient satisfaction.