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Chapter 5 - Examination and Treatment of Complex Cervical Dystonia

Published online by Cambridge University Press:  02 November 2023

By
Deepmala Nandanwar ,
Gerhard Reichel  and
Daniel Truong
Edited by
Daniel Truong ,
Dirk Dressler ,
Mark Hallett ,
Christopher Zachary  and
Mayank Pathak
Daniel Truong
Affiliation:
University of California, Riverside
Dirk Dressler
Affiliation:
Hannover Medical School
Mark Hallett
Affiliation:
National Institutes of Health (NIH)
Christopher Zachary
Affiliation:
University of California, Irvine
Mayank Pathak
Affiliation:
Truong Neuroscience Institute
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Summary

In cervical dystonia (CD), outcome of treatment with botulinum neurotoxin (BoNt), is highly dependent on the correct identificationof the muscles involved. There are “simple” (in one plane) and “complex” (in two or more levels) forms of CD. The difficulty lies in the treatment of complex CD, requiring a more extensive analysis. For such analysis, different diagnostic methods are used. These include: ultrasound, CT neck soft tissue imaging (particularly the deep muscles of the neck), electromyography (EMG) of neck muscles, and standardized photographs of patients with measurements of angles (head, neck, thorax).

Cervical dystonia may occur in principle in three axes (rotation, lateral flexion and sagittal flexion). The head or the neck can be affected alone in each of these planes of movements. Therefore, eight clinical forms can be distinguished: torticollis, laterocollis, antecollis, retrocollis, torticaput, laterocaput, antecaput and retrocaput. In this chapter, involved muscles, their origins and insertions are presented in a table for each of these clinical forms. Injection under CT guidance is described.

Keywords

botulinum neurotoxinBoNTcervical dystoiatorticollislaterocollisantecollisretrocollistorticaputlaterocaputantecaput and retrocaput
Type
Chapter
Information
Manual of Botulinum Toxin Therapy , pp. 23 - 33
Publisher: Cambridge University Press
Print publication year: 2023

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References

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