Related Experiment Videos
Spasmodic torticollis after closed head injury
Journal of the National Medical Association
|May 1, 1987
Summary
Spasmodic torticollis, a movement disorder, can occur after head injuries. Brainstem auditory evoked potentials revealed conduction issues in the brainstem, suggesting a link to trauma-induced neck movements.
Area of Science:
- Neurology
- Movement Disorders
Background:
- Spasmodic torticollis is an extrapyramidal movement disorder, previously misattributed to psychogenic causes.
- Understanding the neurobiological underpinnings of spasmodic torticollis is crucial for accurate diagnosis and treatment.
Observation:
- A case study details a patient experiencing spasmodic torticollis following a closed head injury and intracranial hypertension.
- The patient presented with classic torticollis symptoms but lacked clinical or radiological signs of brainstem dysfunction.
Findings:
- Brainstem auditory evoked potentials (BAEPs) indicated a pontomesencephalic conduction disturbance ipsilateral to the patient's head and neck movements.
- This electrophysiological finding supports the hypothesis that specific brainstem structures are involved in the pathophysiology of torticollis.
Implications:
- The findings suggest that spasmodic torticollis can manifest as a sequela of traumatic brain injury.
- Differentiating post-traumatic spasmodic torticollis from other post-injury neurological events, such as seizures, is clinically important.