The main issues pertaining to oncological surgery of the musculoskeletal system are tumour resection with sufficient margins, and the coverage of inherent defects. We report the use of a pedicled cutaneous groin flap as coverage for a trochanteric defect following an oncological resection of a grade III pleomorphic soft tissue sarcoma in a 75-year-old patient. This flap is not routinely used in the coverage of a defect in this region. The interest of this original process lies in its technical ease, and in the possibility of lifting the flap directly after resection, without changing the set-up.