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Anatomy-guided injections of botulinum neurotoxin in neck muscles: how accurate is needle placement?
A Kreisler1, C Simonin1, A Degardin1
1Service de Neurologie et Pathologie du Mouvement, CHU Lille, Lille, France.
Background And Purpose:
In cervical dystonia, the accuracy of botulinum neurotoxin (BoNT) injections may influence the response to the treatment.
Methods:
We used ultrasound to evaluate the accuracy of anatomy-guided injections of BoNT in the neck muscles.
Results:
A total of 56 consecutive patients and 332 injections were evaluated. The overall accuracy was 76.6%. The lowest accuracy (67.9%) was observed for the splenius capitis muscle.
Conclusions:
Anatomic guidance of BoNT injections in the neck muscles is often inaccurate. Imaging guidance may improve the accuracy of BoNT injections in cervical dystonia.
