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9 Cards in this Set

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  • Back
CV Instability
- Translational instability between C1-C2
- Anterior or posterior translation possible
- Spinal fusion necessary to fix
What atlantodental interval (ADI) is positive for CV instability?
- > 3 mm
- Can indicate dens fx or lax transverse ligament
What are the six differential diagnoses related to dizziness of cervical origin?
1. Post-concussion syndrome
2. Postural hypotension
3. Vestibular dysfunctions
4. Benign paroxysmal positional vertigo
5. CV instability (alar or transverse ligament trauma)
6. Vertebrobasilar ischemia (VBI)
What are characteristics of a patient with post-concussion syndrome?
- Rapid head movements in any direction produce symptoms
What are characteristics of a patient with postural hypotension?
- Older patient
- Lying to sitting/standing position change produces symptoms
What are characteristics of a patient with vestibular dysfunction?
- Can be any age group
- Infectious, traumatic, neoplastic causes
- Head movement causes symptoms, lasts longer
- Tinnitus or fullness in ear (Meniere's syndrome)
What are the characteristics of a patient with BPPV?
- Older patient
- Other signs absent (e.g. neck pain)
- Body rotation test negative
What are the characteristics of a patient with CV instability?
- Nausea
- Positive ligamentous stress tests
What are the characteristics of a patient with VBI?
- Positive body rotation test