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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...
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