History: A 66-year-old woman presents with a history of neck pain for the past 2 months and a fall 3 years prior.
1. What should be included in the differential diagnosis? (Choose all that apply.)
d. Persistent ossiculum terminale
2. Which of the following is the most common type of odontoid fracture based on the Anderson and D’Alonzo classification?
3. Which of the following is a risk factor for odontoid fracture nonunion in adults?
b. Adequate halo immobilization
c. Ability to reduce the fracture
d. Increased displacement or angulation of fracture fragments
4. Which of the following statements regarding odontoid fracture is true?
a. Type III fractures are usually stable.
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