Comparison of Incidences of Intravascular Injection between Medial and Lateral Side Approaches during Traditional S1 Transforaminal Epidural Steroid Injection

<div>Needle tip target for the medial approach and the lateral approach. Posterior S1 neural foramen (circle). L5-S1 SIVD, superior aspect of the L5-S1 intervertebral disc (line).</div>

Pain Research and Management

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Figure 1

Figure 1: Comparison of Incidences of Intravascular Injection between Medial and Lateral Side Approaches during Traditional S1 Transforaminal Epidural Steroid Injection 

Figure 1 | Comparison of Incidences of Intravascular Injection between Medial and Lateral Side Approaches during Traditional S1 Transforaminal Epidural Steroid Injection 