We report 2 cases of acute, progressive myelopathy after a fall in elderly patients who had a retro-odontoid pseudotumour and extensive ossification of the anterior longitudinal ligament.
SzeGBrant-ZawadzkiMNWilsonCRNormanDNewtonTH. Pseudotumor of the craniovertebral junction associated with chronic subluxation: MR imaging studies. Radiology1986;161:391–4.
2.
ChikudaHSeichiATakeshitaKShodaNOnoTMatsudairaK. Radiographic analysis of the cervical spine in patients with retro-odontoid pseudotumors. Spine (Phila Pa 1976)2009;34:E110–4
3.
JunBYYoonKJCrockardA. Retro-odontoid pseudotumor in diffuse idiopathic skeletal hyperostosis. Spine (Phila Pa 1976)2002;27:E266–70.
4.
PatelNPWrightNMChoiWWMcBrideDQJohnsonJP. Forestier disease associated with a retroodontoid mass causing cervicomedullary compression. J Neurosurg2002;96:190–6
WesterveldLAVerlaanJJOnerFC. Spinal fractures in patients with ankylosing spinal disorders: A systematic review of the literature on treatment, neurological status and complications. Eur Spine J2009;18:145–56.
7.
TakamiTGotoTTsuyuguchiNNishikawaMOhataK. Posterior C1–2 fixation with cancellous screw and rod system for retro-odontoid pseudotumor associated with chronic atlantoaxial subluxation. Technical note. Neurol Med Chir (Tokyo)2007;47:189–94.
8.
ChikudaHSeichiATakeshitaKMatsunagaSWatanabeMNakagawaY. Acute cervical spinal cord injury complicated by preexisting ossification of the posterior longitudinal ligament: A multicentre study. Spine (Phila Pa 1976)2011;36:1453–8.
9.
TsukamotoYOnitsukaHLeeK. Radiologic aspects of diffuse idiopathic skeletal hyperostosis in the spine. AJR Am J Roentgenol1977;129:913–8.