Observational Study
Copyright ©The Author(s) 2025.
World J Orthop. Jul 18, 2025; 16(7): 106570
Published online Jul 18, 2025. doi: 10.5312/wjo.v16.i7.106570
Figure 3
Figure 3 Standardization of selective nerve root block. A and B: Location of the puncture needle using an X-ray; C and D: Nerve root imaging after the injection of 0.5 mL of iohexol contrast agent around the root.