Perineal Flap Reconstruction Following Surgery for Advanced Pelvic Malignancy

Inclusion Criteria: * Histologically proven locally advanced or recurrent pelvic cancer (all subtypes - Rectal, Urological, Gynaecological, Sarcoma) * Aged over 18 years * Undergoing a multi-visceral extended pelvic resection and requiring reconstruction of a skin and soft tissue defect as a result * Time period: 1st July 2016 - 1st July 2021 Exclusion Criteria: * Strong evidence of metastatic or peritoneal disease * No immediate flap reconstruction performed at time of extended pelvic resection/pelvic exenteration, or flap reconstruction performed as a delayed procedure or as a response to a complication of prior pelvic exenteration * Insufficient patient follow-up (Minimum of 30 days)