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  • Title: Atlantoaxial instability in a 7-year-old boy associated with traumatic disrupture of the ossiculum terminale (apical odontoid epiphysis).
    Author: Swoboda B, Hirschfelder H, Hohmann D.
    Journal: Eur Spine J; 1995; 4(4):248-51. PubMed ID: 8528785.
    Abstract:
    A case of atlantoaxial instability with a rare etiology in a boy of 7 years and 3 months is presented. Computerized tomography with three-dimensional reconstruction revealed avulsion of the ossiculum terminale (apical odontoid epiphysis). Developmental peculiarities and relevant disorders of the infantile upper cervical spine are discussed. Temporary posterior C1/C2 fusion and transdental screw fixation of the ossiculum terminale were attempted in order to stabilize C1/C2 and avoid permanent fusion. After removal of the dorsal implants, the transdental screw broke, the instability recurred and a permanent atlantoaxial fusion had to be performed.
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