title: Osteogenic distraction and orthognathic surgery to correct sequelae of ankylosis of the temporomandibular joint: a case report.
abstract: A 17-year-old female patient presented with sequelae to ankylosis of the temporomandibular joint, which included vertical maxillary protrusion, anterior open bite, labial incompetence, micrognathia, undefined neck angle, facial asymmetry, Class II molar relationship, and Class III canine relationship. She presented with the following cephalometric and soft tissue data: SNA angle = 78 degrees, SNB angle = 70 degrees, incisor-nasion-point A = 11 degrees, incisor-nasion-point B = 33 degrees, Frankfort-mandibular plane angle = 43 degrees, occlusal plane = 25 degrees, subnasale-stomion = 20 mm, stomion superius-stomion inferius = 9 mm, stomion inferius-soft tissue menton = 30 mm, neck angle = 144 degrees, and chin projection = 10 mm. Orthognathic surgery and mandibular osteogenic distraction were employed, specifically Le Fort I osteotomy to decrease a vertical excess of 12 mm, augmentation genioplasty of 17 mm, and bilateral extraoral distractors of bidirectional vector for a 14-mm augmentation of the mandible. The result was satisfactory with minimal adverse complications.
authors.affiliation: Esthomatology Service, National Pediatric Institute, Colonia Del Valle, Mexico.
authors.forename: Jorge
authors.initials: J
authors.lastname: Tellez Rodriguez
authors.forename: Daniela
authors.initials: D
authors.lastname: Carvalho Tosin
authors.forename: Francisco
authors.initials: F
authors.lastname: Belmont Laguna
mesh_terms: D000328:Adult; D000844:Ankylosis / Q000150:complications* / Q000601:surgery; D002508:Cephalometry; D005146:Facial Asymmetry / Q000209:etiology / Q000601:surgery*; D005260:Female; D006801:Humans; D019186:Mandibular Advancement / Q000379:methods*; D008844:Micrognathism / Q000209:etiology / Q000601:surgery; D019857:Osteogenesis, Distraction / Q000379:methods*; D013705:Temporomandibular Joint Disorders / Q000150:complications* / Q000601:surgery