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Atlantoaxial Personalized Fixations Including Transarticular Screws + Atlas Hooks

  • Peng Zhang
Chapter
Part of the Translational Medicine Research book series (TRAMERE)

Abstract

Different fusion techniques are used to treat atlantoaxial instability, including posterior wiring, interlaminar clamps, C1–C2 TAS, the Harms technique, and crossing C2 ILS technique. However, variants of the VA is relatively common; therefore, there is an urgent need for personalized fixation combinations. Unilateral TAS and contralateral C2PS combined with bilateral C1 LMS and C2ILS and TAS combined with bilateral C1LH have been used as alternatives to traditional techniques. The biomechanics of these two fixation combinations have been confirmed. In addition, a combination of bilateral C1LH and C2ILS is considered a good choice in terms of biomechanics and VA safety.

Abbreviations

C1LH

C1 laminar hook

C1LMS

C1 lateral mass screw

C2ILS

C2 intralaminar screw

C2PS

C2 pedicle screw

CVJ

Craniovertebral junction

CT

Computed tomography

ROM

Range of motion

TAS

Transarticular screw

VA

Vertebral artery

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Copyright information

© Springer Nature Singapore Pte Ltd. and Shanghai Jiao Tong University Press 2018

Authors and Affiliations

  • Peng Zhang
    • 1
  1. 1.Department of OrthopedicsChangzheng HospitalShanghaiChina

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