Table 3 Effect of pedicle screw swivel versus standard acquisition trajectory
p | \({\eta }_{p}^{2}\) | Cohens d | |
|---|---|---|---|
Overall (Th10–L5) | |||
Subjective image quality (Q1–Q9) | < 0.001 | 0.483 | 0.97 |
Spinal canal and dorsal vertebral body (Q1–Q3) | < 0.001 | 0.347 | 0.73 |
Vertebral pedicle (Q4–Q6) | < 0.001 | 0.402 | 0.82 |
Screw length and ventral vertebral body (Q7–Q8) | < 0.001 | 0.301 | 0.66 |
Clinical assessability (Q9) | < 0.001 | 0.341 | 0.72 |
Spine area 1 (Th10–L1) | |||
Subjective image quality (Q1–Q9) | < 0.001 | 0.652 | 1.37 |
Spinal canal and dorsal vertebral body (Q1–Q3) | < 0.001 | 0.554 | 1.11 |
Vertebral pedicle (Q4–Q6) | < 0.001 | 0.498 | 1.00 |
Screw length and ventral vertebral body (Q7–Q8) | 0.001 | 0.433 | 0.87 |
Clinical assessability (Q9) | < 0.001 | 0.542 | 1.09 |
Spine area 2 (L2–L5) | |||
Subjective image quality (Q1–Q9) | 0.010 | 0.239 | 0.56 |
Spinal canal and dorsal vertebral body (Q1–Q3) | 0.119 | 0.180 | |
Vertebral pedicle (Q4–Q6) | 0.025 | 0.208 | 0.51 |
Screw length and ventral vertebral body (Q7–Q8) | 0.288 | 0.112 | |
Clinical assessability (Q9) | 0.109 | 0.155 | |