Posterior Atlantoaxial Fixation: Biomechanical In Vitro Comparison of Six Different Techniques

@article{Richter2002PosteriorAF,
  title={Posterior Atlantoaxial Fixation: Biomechanical In Vitro Comparison of Six Different Techniques},
  author={Marcus Richter and Ren{\'e} Schmidt and Lutz Claes and Wolfhart Puhl and Hans-Joachim Wilke},
  journal={Spine},
  year={2002},
  volume={27},
  pages={1724-1732}
}
Study Design. Six different techniques for atlantoaxial fixation were biomechanically compared in vitro by nondestructive testing. Objective. To evaluate the immediate three-dimensional stability of a new atlas claw combined with transarticular screws and alternative techniques for transarticular screw fixation in comparison with established techniques. Summary of Background Data. Posterior transarticular screw fixation in combination with wire–bone graft constructs is frequently used for C1–C2… 
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TLDR
The results clearly indicate the screw–rod system’s equivalence in reducing relative atlantoaxial motion in a severely destabilized upper cervical spine, as compared with the transarticular screw–wiring construct.
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The current findings substantiate the use of three-point fixation as the treatment of choice for C1–C2 instability as well as investigating the role of bilateral transarticular screws in this case.
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TLDR
The experiment was designed to determine the immediate three-dimensional stability of the spinal construct and found that the Gallie system generally allowed significantly more rotation in flexion, extension, axial rotation, and lateral bending than the other three fixation techniques.
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TLDR
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TLDR
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