Lateral pterygoid muscle dystonia. A new technique for treatment with botulinum toxin guided by electromyography and arthroscopy.
Summary of "Lateral pterygoid muscle dystonia. A new technique for treatment with botulinum toxin guided by electromyography and arthroscopy."
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.
Affiliation
Departamento de Cirugía Maxilofacial, Hospital Universitario Nuestra SeNora de la Candelaria, Santa Cruz de Tenerife, C/ Carretera del Rosario S/N, Santa Cruz de Tenerife, Spain, plmartos9@hotmail.com.
Journal Details
This article was published in the following journal.
Name: Medicina oral, patologia oral y cirugia bucal
ISSN: 1698-6946
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20711164
- DOI: http://dx.doi.org/
Medical and Biotech [MESH] Definitions
Pterygoid Muscles
Two of the masticatory muscles: the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle. Action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side.
Botulinum Toxin Type A
A 150 kDa neurotoxic protein produced by CLOSTRIDIUM BOTULINUM. When consumed in contaminated food it can cause paralysis and death. In its purified form, it has been used in the treatment of BLEPHAROSPASM and STRABISMUS.
Clostridium Botulinum Type C
Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type C which is neurotoxic to ANIMALS, especially CATTLE, but not humans. It causes dissociation of ACTIN FILAMENTS.
Clostridium Botulinum Type D
Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type D which is neurotoxic to ANIMALS, especially CATTLE, but not humans.
Clostridium Botulinum Type A
Subtype of CLOSTRIDIUM BOTULINUM that produces BOTULINUM TOXIN TYPE A which is neurotoxic to humans and animals.
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