Table 2 Absolute and relative distribution of pedicle screws of the study (SG) and control group (CG) on the spinal segments
Cervical segment | Thoracic segment | Lumbar segment | |
|---|---|---|---|
SG (n = 501) | 159 (31.7%) | 250 (49.9%) | 92 (18.4%) |
Type C–E of SG (n = 56) | 7 (12.5%) | 36 (64.3%) | 13 (23.2%) |
CG (n = 498) | 31 (6.2%) | 247 (49.6%) | 220 (44.2%) |
Type C–E of CG (n = 116) | 3 (2.6%) | 69 (59.5%) | 44 (37.9%) |