Evaluation of using botulinum toxin (A) in the treatment of myofacial pain syndrome
Abstract
Myofacial
pain syndrome (MPS) is a disorder which has become a topic over the
past two decades and nowadays .10 patients (9 female & 1 male)
complaining of unilateral MPS were injected with botulinum toxin type
A(BTX-A) in masseter and temporalis muscles extra orally under
electromyographic guidance (EMG) since they are the primary muscles
responsible for pain in ear region and temporal headache respectively,
which cause limitation of mandibular movement and development of MPS.
EMG evaluation of the results together with clinical one were taken at
baseline before injection, after 1, 2, 3 and 6 months following the last
injection. The study revealed that BTX-A reduced the severity of
symptoms and improve functional abilities for patients with MPS and
these extend beyond its muscle - relaxing effects.
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