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Updated: Jul 24, 2025

Treatment of Facial Deformities using 3D Planning and Printing of Patient-Specific Implants
Published on: May 23, 2020
Orthognathic surgery with iliac bone grafting for an interpositional gap in a patient with type III hemifacial
Madoka Sugiyama1, Shinji Kobayashi1, Kazunori Yasumura1
1Department of Plastic and Reconstructive Surgery, Kanagawa Children's Medical Center, 2-138-4, Mutsukawa ,Minami ward, Yokohama, Kanagawa, 232-8555, Japan.
Abstract:
Hemifacial microsomia (HFM) is characterized by uni- or bilateral microtia and hypoplasia of the mandible, orbits, facial nerve, and adjacent soft tissues. Patients with Pruzansky-Kaban type III HFM show the most severe facial deformities and often encounter difficulty obtaining treatment. In recent years, orthognathic surgery for HFM-related deformities has often been performed after the patient has stopped growing. However, few detailed reports have described the difficulties of orthognathic surgery for patients with type III HFM. This report describes the case of a patient with type III HFM who underwent three unilateral mandibular reconstructions while still growing, including autogenous reconstructions and secondary distraction osteogenesis, followed by orthognathic surgery with iliac bone grafting for an interpositional gap between the proximal and distal segments after she had stopped growing to improve facial asymmetry and malocclusion.

