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Related Experiment Videos

Focal shoulder-elevation dystonia.

R A Wright1, J E Ahlskog

  • 1Department of Neurology, Mayo Clinic, Rochester, Minnesota 55905, USA.

Movement Disorders : Official Journal of the Movement Disorder Society
|August 6, 2000
PubMed
Summary
This summary is machine-generated.

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This study details 13 cases of isolated shoulder dystonia, often following trauma. Botulinum toxin therapy proved effective for shoulder dystonia symptoms when other treatments failed.

Area of Science:

  • Neurology
  • Movement Disorders

Background:

  • Isolated focal dystonia of the shoulder is uncommon.
  • Patients present with dystonic shoulder elevation and trapezius hypertrophy without obvious cervical dystonia.

Purpose of the Study:

  • To describe the clinical features, precipitating factors, and treatment outcomes of isolated focal shoulder dystonia.
  • To evaluate the efficacy of botulinum toxin therapy in this patient group.

Main Methods:

  • Case series describing 13 patients with isolated focal shoulder dystonia.
  • Review of patient history for trauma, occupational factors, and pre-existing risk factors for dystonia.
  • Assessment of treatment responses to conventional dystonia medications and botulinum toxin therapy.

Main Results:

Related Experiment Videos

  • Nine cases followed shoulder trauma (e.g., motor vehicle accidents).
  • Two cases were linked to chronic heavy labor, and one to cervical radiculopathy.
  • No patients had prior risk factors for dystonia.
  • Conventional dystonia medications were ineffective, but botulinum toxin therapy benefited all six treated patients.

Conclusions:

  • Isolated focal shoulder dystonia can occur secondary to trauma or overuse.
  • Botulinum toxin is an effective treatment for shoulder dystonia, showing significant benefit where other medications failed.