Os Odontoideum [PDF]
References:

1) Os Odontoideum. Neurosurgery 2002;30(3):S148-S155 [PDF]

2) Shirasaki N, Okada K, Oka S. Os Odontoideum with Posterior Atlantoaxial Instability. Spine 1991;16(7):706-715 [PDF]

3) Sankar WN, Wills BPD, Dormans JP. Os Odontoideum Revisited: The Case for a Multifactorial Etiology. Spine
2006;31(9):979-984
[PDF]

4) Fielding JW, Hensinger RN, Hawkins RJ. Os Odontoideum. J Bone Joint Surg Am 1980;62:376-383 [PDF]

5) Choit RL, Jamieson DH, Reilly CW. Os odontoideum: a significant radiographic finding. Pediatr Radiol 2005;35:803-807 [PDF]