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Introduction Although classically described as “mandibulofacial dysostosis,” contemporary understanding of the three-dimensional (3D) skeletal dysmorphology in patients with Treacher Collins syndrome (TCS) extends to include midface hypoplasia involving the zygoma and maxilla. The hallmark of severe deficiency is orbitozygomatic hypoplasia…
Introduction Nonsyndromic craniosynostosis refers to the premature fusion of cranial sutures in the absence of other congenital anomalies. Fusion typically occurs at only one suture, though in rare nonsyndromic cases, fusion at multiple sutures can occur and is referred to…
Introduction Various conditions, congenital and acquired, can limit midface growth resulting in midface hypoplasia. Midface hypoplasia may be a result of developmental maxillary dysplasia, skeletal and dental class III malocclusion, and hard palate narrowing. This can lead to airway obstruction,…
Introduction The care of children with syndromic craniosynostosis is complex and multifaceted, and surgical interventions are a critical component of treatment and an opportunity to provide significant functional and aesthetic improvements in these patients. The use of computer-assisted design and…
Introduction Hypertelorism is defined as increased bony interorbital distance (IOD) and is measured by the interdacryon distance, which is the distance between the most medial osseous aspect of the orbits. Orbital hypertelorism is distinct from telecanthus, which refers to the…
Introduction Total temporomandibular joint replacement (TMJR) is indicated for the treatment of inflammatory arthritis not responsive to other modalities of treatment, recurrent fibrous and/or bony ankylosis, failed tissue grafts, failed alloplastic temporomandibular joint (TMJ) reconstruction, or loss of vertical mandibular…
Introduction The free fibula flap has become the workhorse for mandible reconstruction. It was popularized by Hidalgo in 1989 and in its early iterations, involved creating intraoperative templates to guide osteotomies and hand-bend plates. Although this involved great artistry and…
Introduction The midface is a complex skeletal framework that is composed principally of the maxilla and zygoma. Structural support is provided by a set of horizontal and vertical pillars ( Fig. 7.1 ). The main horizontal buttresses are the maxillary…
Introduction The goal of cranioplasty is to restore structure and function of missing cranial bone while providing support to soft tissues. Choice of surgical approach and reconstructive material depends on the nature and size of the defect, the patient’s history,…
Introduction Orthognathic surgery outcomes depend not only on surgical technique, but also on appropriate diagnosis and treatment planning. The adoption of computer-assisted design/computed-assisted manufacturing (CAD/CAM) technology, computer-assisted surgical planning (CaSP), and three-dimensional (3D) printing has created a paradigm shift for…