From: Assessment of the outcome of percutaneous pedicle screws in management of degenerative and traumatic dorsal and lumbar pathologies
Visual analogue score
(VAS)
Mean
SD
Range
Pre-operative
9.05
1.05
7–10
Post-operative 24 h later
7.3
1.38
5–10
Post-operative 6 months later
2
1.21
0–4