Atlantoaxial Subluxation due to an Os Odontoideum in an Achondroplastic Adult: Report of a Case and Review of the Literature

<div>T1-weighted sagittal MR images showing os odontoideum, severe narrowing, and a hyperintense signal at cervicomedullary junction indicating myelopathy.</div>

Case Reports in Orthopedics

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Figure 3

Figure 3: Atlantoaxial Subluxation due to an Os Odontoideum in an Achondroplastic Adult: Report of a Case and Review of the Literature 