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Table 3 Data for instruments used for the C2 pedicle in patients with a HRVA (31 sides of 26 patients)

From: Correlation between osteoarthritis of the atlantoaxial facet joint and a high‐riding vertebral artery

Instrument  
Pedicle screw 0
Laminar screw 9
Pars screw 0
No insertion Anterior fusion 9
Only decompression 1
Fixation above C3 10
Avoid insertion 2
Total 31