II. Epidemiology

  1. Prevalence: 9 per 100,000
  2. Average Age of onset: 40 years
  3. Gender predominance: Women account for 65% of cases

III. Definition

  1. Movement Disorder
  2. Involuntary neck and shoulder Muscle Contractions
  3. Head twists into aberrant position

IV. Symptoms

  1. Pain (93%)
  2. Difficult reading, driving, watching television
  3. Withdrawal from social interactions
  4. Abnormal Posture (83%)
  5. Head jerks or neck spasms (62%)

V. Types

  1. Torticollis (neck rotation)
  2. Laterocollis (lateral neck bending)
  3. Retrocollis (neck extension)
  4. Anterocollis (neck flexion)

VI. Causes

  1. Primary or idiopathic cervical Torticollis
    1. Hereditary
      1. Autosomal Dominant
      2. X-linked recessive
    2. Sporadic
  2. Secondary or symptomatic cervical Torticollis
    1. Cervical Lymphadenopathy
      1. Streptococcal Pharyngitis
    2. Hereditary neurologic syndromes
    3. Environmental causes
      1. Neck Trauma (e.g. Whiplash)
      2. Medications
      3. Toxins
      4. Perinatal cerebral injury
    4. Parkinsonism
    5. Psychogenic Dystonia

VII. Labs

  1. Quick Strep Test

VIII. Management

  1. Physical Therapy
  2. Botulin Toxin Type-A (local injection)
  3. Systemic Medications
    1. Anticholinergics
    2. Muscle relaxants

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