Frank Steffen1, Mark Flueckiger, Pierre M Montavon. 1. Department of Small Animals, Sections of Surgery/Neurology and Radiology/Radiooncology, Faculty of Veterinary Medicine of the University of Zurich, Zurich, Switzerland.
Abstract
OBJECTIVE: To present a detailed description of a dog with atlanto-occipital (A-O) luxation, including results of the neurologic examination, diagnostic imaging, and treatment by closed reduction. STUDY DESIGN: Clinical case report. SAMPLE POPULATION: One adult intact male German shepherd dog. RESULTS: Neurologic signs included nonambulatory tetraparesis and neck pain. An apparent hypoglossal nerve deficit was consistent with a lesion at the peripheral part of the nerve in the region of the craniocervical junction. Radiographic examination revealed a left-sided luxation of the A-O joint, and fractures were excluded with the aid of computed tomography (CT). Closed reduction of the luxated articulation resulted in a stable A-O joint, and complete neurologic recovery occurred within 4 weeks. CONCLUSIONS: Hypoglossal nerve deficits may be associated with A-O luxation. CLINICAL RELEVANCE: Closed reduction of a unilateral, traumatic luxation of the A-O joint is a therapeutic option in dogs. CT imaging, especially 3-dimensional reconstruction, was considered helpful in excluding fractures as well as defining treatment options. Copyright 2003 by The American College of Veterinary Surgeons
OBJECTIVE: To present a detailed description of a dog with atlanto-occipital (A-O) luxation, including results of the neurologic examination, diagnostic imaging, and treatment by closed reduction. STUDY DESIGN: Clinical case report. SAMPLE POPULATION: One adult intact male German shepherd dog. RESULTS: Neurologic signs included nonambulatory tetraparesis and neck pain. An apparent hypoglossal nerve deficit was consistent with a lesion at the peripheral part of the nerve in the region of the craniocervical junction. Radiographic examination revealed a left-sided luxation of the A-O joint, and fractures were excluded with the aid of computed tomography (CT). Closed reduction of the luxated articulation resulted in a stable A-O joint, and complete neurologic recovery occurred within 4 weeks. CONCLUSIONS:Hypoglossal nerve deficits may be associated with A-O luxation. CLINICAL RELEVANCE: Closed reduction of a unilateral, traumatic luxation of the A-O joint is a therapeutic option in dogs. CT imaging, especially 3-dimensional reconstruction, was considered helpful in excluding fractures as well as defining treatment options. Copyright 2003 by The American College of Veterinary Surgeons
Authors: Mario Dolera; Luca Malfassi; Cristina Bianchi; Nancy Carrara; Laura Corbetta; Sara Finesso; Silvia Marcarini; Giovanni Mazza; Simone Pavesi; Massimo Sala Journal: J Vet Med Sci Date: 2016-02-28 Impact factor: 1.267