Complex defects resulting from infected bone or joints with or without osteosynthesis or prosthetic material lead to significant challenges that need to be addressed through orthoplastic approaches. Foot and ankle reconstruction is particularly difficult due to the lack of local or regional flap solutions in this highly mobile joint, which often necessitates microsurgical flaps in extended defects. In addition, rigorous bone reconstruction is critical to acute bone infection to minimize the risks of functional impairments. We present a novel approach using a chimeric osteocutaneous flap to address a complex calcaneus fracture with extended postoperative skin necrosis and septic pseudoarthrosis. A dual skin paddle (16 × 6.5 cm and 14 × 4.5 cm) was created using a superficial inferior epigastric artery (SIEA)-to-superficial circumflex iliac artery (SCIA) anastomosis, while the 7-cm pedicle was increased using a deep inferior epigastric artery graft, which was anastomosed to the tibial anterior vessels. The vascularized iliac crest component enabled optimal reconstruction of the bone defect with rapid healing, while the combined SCIP (superficial circumflex iliac artery perforator)–SIEA skin flap was used to cover the bone reconstruction and skin defect. This microsurgical reconstruction allowed optimal functional recovery at 12 months with successful bone integration and soft tissue coverage. The step-by-step intraoperative technique is described through [Video 1] and [Supplementary Video 2]. Conceptualization: P.G., H.P. Data curation: Y.B., P.M., P.G., H.P. Formal analysis: Y.B., E.L., N.B., C.H., J.L. Methodology: N.B., C.H., P.G., H.P. Project administration: N/A Visualization: Y.B., P.M., P.G., H.P. Writing — original draft: Y.B. Writing — review and editing: all authors. All clinical care was compliant with the principles of the Declaration of Helsinki (1964) and the French Bioethics Law (2011). Informed consent was obtained from the patient for the use of his medical record, photographs, and videos. * These authors shared senior authorship. Received: 29 January 2025 Accepted: 08 May 2025 Accepted Manuscript online: 16 June 2025 Article published online: 01 September 2025 © 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/) Thieme Medical Publishers, Inc. 333 Seventh Avenue, 18th Floor, New York, NY 10001, USA