title: Lateral pterygoid muscle dystonia. A new technique for treatment with botulinum toxin guided by electromyography and arthroscopy.
abstract: Lateral pterygoid muscle dystonia is characterized by mandibular displacement towards the opposite side of the affected muscle. It may be associated with functional disorders affecting speech, swallowing, chewing and facial symmetry. Injection with botulinum toxin is recognized as the most effective treatment. Locating the lower head of the lateral pterygoid muscle for the injection is not difficult using electromyographic guidance; however, location of the upper head is more complicated, even with electromyography. We report a case of lateral pterygoid muscle dystonia in which precise injection of the upper head was achieved with the aid of arthroscopy.
authors: Department of Maxillofacial Surgery, Hospital Universitario Nuestra Señora de la Candelaria, Tenerife, Spain. plmartos9@hotmail.com
authors: Pedro
authors: P
authors: Martos-Díaz
authors: Francisco-José
authors: FJ
authors: Rodríguez-Campo
authors: Raquel
authors: R
authors: Bances-del Castillo
authors: Oscar
authors: O
authors: Altura-Guillén
authors: Gui-Youn
authors: GY
authors: Cho-Lee
authors: María
authors: M
authors: Mancha-de la-Plata
authors: Veronica
authors: V
authors: Escorial-Hernandez
mesh_terms: D001182:Arthroscopy; D019274:Botulinum Toxins, Type A / Q000008:administration & dosage*; D004421:Dystonia / Q000188:drug therapy*; D004576:Electromyography; D005260:Female; D006801:Humans; D008875:Middle Aged; D009465:Neuromuscular Agents / Q000008:administration & dosage*; D011626:Pterygoid Muscles
chemical_list: D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A