title: Unilateral synostosis of the zygo-maticotemporal suture associated with mandibular coronoid process impingement in a dog.
abstract: A 13-month-old dog was investigated for the complaint of open-mouth locked jaw. There were not any previous episodes of trauma witnessed. Computed tomographic evaluation revealed unilateral zygomatico-temporal synostosis and associated craniofacial asymmetry, with impingement of the mandibular coronoid process resulting in unilateral temporomandibular joint subluxation. Closed reduction of the subluxation was not maintained. Partial zygomatico-temporal suturectomy resulted in resolution of the clinical signs. To the author's knowledge, isolated zygomaticotemporal syno-stosis with associated temporomandibular subluxation has not been reported in the dog.
authors.affiliation: Mr. John M. Ryan MVB, CertSAS, MRCVS, Royal (Dick) School of Veterinary Studies, Division of Clinical Sciences, The University of Edinburgh, Hospital for Small Animals, Easter Bush Veterinary Centre, Roslin, Midlothian, Scotland, Phone: +44 131 650 7650, Fax: +44 131 650 7652, E-mail: john.ryan@ed.ac.uk.
authors.forename: J M
authors.initials: JM
authors.lastname: Ryan
authors.forename: E
authors.initials: E
authors.lastname: Fraga-Manteiga
authors.forename: T
authors.initials: T
authors.lastname: Schwarz
authors.forename: D N
authors.initials: DN
authors.lastname: Clements
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000601:surgery*; D004285:Dogs; D008297:Male; D008335:Mandibular Condyle / Q000473:pathology*; D011183:Postoperative Complications; D013580:Synostosis / Q000662:veterinary*; D013701:Temporal Bone / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000601:surgery / Q000662:veterinary*; D016896:Treatment Outcome; D015050:Zygoma / Q000473:pathology*
keywords: Zygomaticotemporal; dog; suture; synostosis; temporomandibular