A Video of Ultrasound‐Guided S1 Transforaminal Epidural Injection Using Color Doppler: Technical Reports.

Lumbosacral radicular pain with or without radiculopathy is a fairly common clinical condition. In such cases, lumbosacral transforaminal epidural injection (TFEI) is one of the most commonly performed interventions. Recent studies have explored the effectiveness of ultrasound (US)‐guided lumbosacral TFEI. Most of these studies have focused on lumbar TFEI via an in‐plane approach. S1 TFEI can also be easily performed, since the S1 foramen is more superficial than the lumbar foramen. However, most studies regarding US‐guided sacral TFEI use an out‐of‐plane technique. Therefore, in this report we present a video of US‐guided S1 TFEI via an in‐plane approach. [ABSTRACT FROM AUTHOR]