. . . "CD: Also known as spasmodic torticollis, CD is a neurologic disorder in which the head and neck are abnormally postured because of involuntary muscle contractions.7,8 These contractions cause pain in 70% to 90% of patients.7 The presentation of CD can be complex: There may be varying combinations of sustained and intermittent movements, and the movements may be precipitated by activities such as t" .