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 alignment and decompression of craniocervical junction. Note short clivus, low Trochler Herophili, and small posterior fossa.</div>

Case Reports in Orthopedics

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Figure 8

Figure 8: Atlantoaxial Subluxation due to an Os Odontoideum in an Achondroplastic Adult: Report of a Case and Review of the Literature 