Ultrasound-Guided Selective Nerve Root Block versus Fluoroscopy-Guided Interlaminar Epidural Block versus Fluoroscopy-Guided Transforaminal Epidural Block for the Treatment of Radicular Pain in the Lower Cervical Spine: A Retrospective Comparative Study

Figure 3

Illustration of significant pain relief (VNS score improvement of >50%, NDI score improvement of >40%). A group: ultrasound-guided selective nerve root block, B group: fluoroscopy-guided interlaminar epidural block, C group: fluoroscopy-guided transforaminal epidural block. Verbal Numeric pain Scale (VNS), Neck Disability Index (NDI).