The use of the internal pudendal artery perforator flap after abdominoperineal reconstruction: A single center study

Abstract

Abdominoperineal resection (APR) is still a valuable option in the presence of cancer recurrences or salvage surgery. Primary perineal closure after conventional APR curries a high rate of wound complications. A multidisciplinary approach with perineal soft tissue reconstruction surgical time improves the immediate and long-term prognosis of these patients. The aim of the study is to report our experience with the use of the internal pudendal artery perforator flap in perineal region reconstruction after APR. We performed 11 perineal region reconstructions after conventional APR between September 2016 and December 2020. In 8 cases the reconstruction was performed on previously irradiated tissues while in 2 cases the radiotherapy was carried out on the perineal tissues solely for adjuvant therapy. A rotation perforating flap was harvested in 8 cases, an advance island flap in 2 cases, and a propeller type in one case. All 11 flaps survived with no immediate postoperative major complications. Only one case showed dehiscence of the donor site wound healed with conservative treatment. Average hospitalization time was 11 days internal pudendal artery perforator flap represents a valid and reliable reconstructive solution after APR showing low complication rates and minimal donor site morbidity even in patients with previous radiotherapy.

Keywords: Abdominoperineal resection; Internal pudendal artery perforator flap; Low rectal cancer; Perineal soft tissues reconstruction.