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Table 3 Perforation directions of 15 misplaced pedicle screws

From: The accuracy of a novel pedicle screw insertion technique assisted by a special angular scale in the subaxial cervical spine using lateral mass as a reference marker

Pedicle Lateral* Superior Inferior Medial
C3 4 0 1 0
C4 2 1 0 0
C5 3 1 0 0
C6 1 0 0 0
C7 1 1 0 0
Total 11 3 1 0
  1. *Statistically significant using chi-squared tests P < 0.05