Functional and Aesthetic Restoration After Surgical Treatment of Oral Squamous Cell Carcinoma Using Radial Forearm Free Flap: Case Report.

Oral squamous cell carcinoma (OSCC) is the most common malignancy of the oral cavity, often necessitating extensive surgical resection. Such interventions may result in complex intraoral defects requiring immediate reconstruction to restore function and aesthetics. This case report highlights the surgical management of a patient with OSCC involving the tongue, floor of the mouth and mandibular ridge, reconstructed using a radial forearm free flap (RFFF). Case report: A 51-year-old male with a history of heavy smoking presented with a necrotic lesion affecting the left mandibular alveolar ridge, floor of the mouth, and tongue. Histopathological examination confirmed a diagnosis of moderately differentiated keratinizing OSCC (G2). After oncologic resection and selective neck dissection, the defect was reconstructed using an RFFF harvested from the left forearm. The facial artery and anterior jugular vein served as recipient vessels for microvascular anastomosis. A split-thickness skin graft (STSG) was used to close the donor site. The postoperative course was generally favorable. Minor complications, including a localized hematoma and neck wound dehiscence, were conservatively managed. Functional outcomes such as oral intake and wrist mobility were successfully restored with rehabilitation. The RFFF provided durable, well-vascularized coverage over exposed mandibular bone, critical for minimizing the risk of osteoradionecrosis in the context of planned adjuvant radiotherapy. The radial forearm free flap remains a reliable reconstructive option for complex oral defects post-OSCC resection. Multidisciplinary collaboration and meticulous surgical technique are essential to achieve optimal oncologic, functional, and aesthetic outcomes.