Anatomy‐guided injections of botulinum neurotoxin in neck muscles: how accurate is needle placement?
Alexandre Kreisler, C. Simonin, Adrian Degardin, Eugénie Mutez, Luc Defebvre
Abstract
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.
Topics & Concepts
MedicineCervical dystoniaBotulinum neurotoxinNeck musclesBotulinum toxinDystoniaSpasmodic dysphoniaFocal dystoniaUltrasoundAnatomyAnesthesiaNuclear medicineRadiologyToxinChemistryPsychiatryBiochemistryBotulinum Toxin and Related Neurological DisordersNerve Injury and RehabilitationHereditary Neurological Disorders