PMC8555620_01
The right sternocleidomastoid was selected for injection under standard cervical dystonia assessment. This corresponded with the right CF (blue dot) located at the insertion site of the sternocleidomastoid at the sternoclavicular joint- allowing for more specificity in injection site selection.
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F1
Identification of the CF right antemedial column allowed for more specificity in injection site selection- at the insertion site of the sternocleidomastoid at the sternoclavicular joint. (Figure 1) In addition, CC's and CF's on the trunk were selected for injection to provide fascial balance and fell outside typical muscles selected for standard cervical dystonia assessment.