Neurosurgical Review

, Volume 6, Issue 4, pp 229–233 | Cite as

Modern treatment of the symptomatic os odontoideum

  • Claus Roosen
  • Wilhelm Grote
  • Alois Trauschel
Cranio-Cervical Dysplasias —Modern diagnostic and operative procedures—


A new surgical procedure for treatment of congenital, symptomatic atlanto-axial instability (os odontoideum) is described. Two metallic clamps, with an integrated inner spring for maintaining continuous pressure on a cortico-cancellous bone-graft implanted into the interlaminar space, are fixed posteriorly on the vertebral arches C1/2 next to the graft. Because of the initial solid segment-stability external fixation is unnecessary. Posterior interlaminar osteosynthesis prevents late neurological complications caused by a mobile os odontoideum.


Atlanto-axial instability dens-pseudoar-throsis interlaminar osteosynthesis os odontoideum posterior atlanto-axial fusion 


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Copyright information

© Verlag Walter de Gruyter & Co. 1983

Authors and Affiliations

  • Claus Roosen
    • 1
    • 2
  • Wilhelm Grote
    • 1
    • 2
  • Alois Trauschel
    • 1
    • 2
  1. 1.Department of Neurological Surgery and Technical Central Laboratory of Experimental MedicineUniversity of EssenBundesrepublik Deutschland
  2. 2.Neurochirurgische UniversitätsklinikEssen 1Bundesrepublik Deutschland

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