Impact of posterior deep neck muscle treatment on cervical dystonia: Necessity to differentiate between abnormal positions of head and neck

If CD patients with a retrocollis component do not respond well to injections of standard muscles, injections of the pDNMs should be considered. However, to actually evaluate the clinical benefit resulting from pDNM injections, new scales and scores have to be developed since the existing clinical scoring tools do not differentiate between movements of the head and the neck.