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Table 2 Pedicle screw-related variables

From: Comparative analysis of clinical factors associated with pedicle screw pull‐out during or immediately after surgery between intraoperative cone‐beam computed tomography and postoperative computed tomography

Variable N = 742
Adequate insertion 714 (96.2)
Misplacement 28 (3.8)
Penetration
 Minor 14 (1.9)
 Moderate 8 (1.1)
 Severe 6 (0.8)
Pedicle screw pull-out 58 (7.8)
Pedicle screw pull-out and misplacement 7 (0.9)
Pull-out area
 Upper instrumented vertebra 9 (15.5)
 Inter-levels 38 (65.5)
 Lower instrumented vertebra 11 (19.0)
  1. Data are presented as number (%)