Use of pedicled flaps after oncologic resections in pediatric patients.

The aim of this study is to review the indications of pedicled flaps and analyze the results. A observational retrospective study of under 18-year-old oncology patients who required reconstructive surgery with pedicled flaps between 2011 and 2022 was performed. Demographic and clinical variables, indications, complications, and outcomes were collected. 236 patients were reviewed and 13 met inclusion criteria, eight girls and five boys (mean age: 10.6 years). Indications were Ewing's sarcoma (5), osteosarcoma (5), neuroblastoma, desmoid tumor, and neurofibroma. Preoperative PET-CT, MRI and bone scintigraphy were performed. The flaps were used on costal and extremity reconstruction: latissimus dorsi (5), pectoralis (2), medial gastrocnemius (2), combined latissimus dorsi, trapezius and serratus muscle, biceps femoris, fascio-neuro-cutaneous saphenous and cutaneous advancement-rotation. Two were performed on allograft and eight on prosthesis. All allowed immediate and complete closure. Six patients received intraoperative radiotherapy. One flap infection and two vascular complications were reported, a total necrosis, which required a new flap, and a partial necrosis, treated with a local plasty. Chemotherapy was resumed after 21 days (15-31). Mean follow-up time was 5.34 years. Flaps are an effective therapeutic option allowing reconstruction of large defects after pediatric oncologic surgeries. The most frequent complication was vascular.