Cervical Spine Reconstruction With Vascularized Osteoadipofascial Fibular Flap and Periosteum Extension After Chordoma Resection and Adjuvant Proton Therapy: A Case Report.

Cervical spine reconstruction is essential following en bloc tumor resections, particularly in defects exceeding four centimeters. Traditional mechanical solutions or non-vascularized grafts are often suboptimal, with complications such as non-union, infections, and instability. The vascularized osteoadipofascial fibular flap offers a durable alternative with structural and biological benefits. We present the case of a 55-year-old woman with an 8-month history of cervicobrachialgia and left upper limb paresis. Imaging revealed a 7-cm lesion spanning C4-T1 with foraminal infiltration, and histopathology confirmed a chordoma. A two-stage surgery was performed: posterior stabilization and partial tumor resection, followed by anterior corpectomies (C5, C6, C7) and reconstruction with a vascularized fibular flap. The flap was anastomosed to the superior thyroid vessels, and its adipofascial component isolated the esophagus from the anterior cervical plate. Postoperative proton therapy was administered. Postoperative recovery was uneventful, with a 10-day hospital stay. At 24 months, the patient showed no recurrence, complete symptom resolution, and stable osteosynthesis with evidence of bone callus formation at graft-vertebra junctions. This case suggests that vascularized fibular reconstruction may provide reliable structural support and biological integration in complex cervical oncologic defects.