Atlanto-axial Fixation. A Biomechanical Study with CD Instrumentation

  • E. Dehoux
  • F. Deprey
  • Ph. Segal
  • J. B. Flament
Conference paper


C1–C2 fixation still poses many problems. We studied a series of odontoid process fractures [5] and post-traumatic C1/C2 dislocations. In our acute dens fractures series (59 cases), we used posterior wiring (with or without graft) in 30 cases. With this technique we obtained a complete reduction in 22 cases (73%) but on the follow-up X-rays we noted 12 secondary displacements of the dens (40%) and 4 pseudarthroses. We used the same operation with 10 C1/C2 dislocations, and we observed 5 postoperative slips (50%) and 2 pseudarthroses of the graft. In 1987, Perrin [4] published a short series of C1/C2 fixations of rheumatoid dislocation treated with CD instrumentation. We thought this idea was useful and before applying it, we made a biomechanical comparaison between wiring and CD instrumentation. This paper reports our results.


Cervical Spine Ligamentum Flavum Odontoid Fracture Cervical Spine Fracture Laminar Hook 
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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • E. Dehoux
    • 1
  • F. Deprey
    • 1
  • Ph. Segal
    • 1
  • J. B. Flament
    • 1
  1. 1.ReimsFrance

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