Transforaminal Epidural Steroid Injection Guidelines for Lumbar Spinal Stenosis

Indications and Contraindications

The American Society of Anesthesiologists strongly recommends epidural steroid injections for patients with radicular pain or radiculopathy as part of a multimodal treatment regimen 1, 2, 5
TFESI is medically indicated for patients with lumbar spinal stenosis and radicular pain, provided the patient has true radiculopathy with pain radiating below the knee, has failed at least 4-6 weeks of conservative therapy, and has MRI evidence of nerve root compression correlating with clinical symptoms 1, 2
The American Academy of Neurology explicitly recommends against epidural steroid injections for non-radicular low back pain 4, 1, 2
TFESI is not indicated for axial (non-radicular) low back pain from spinal stenosis alone 3, 4, 1

The patient must demonstrate radicular pain specifically defined as pain and/or numbness radiating below the knee—not just back pain or thigh pain 1, 2
Clinical examination should document decreased sensation in a dermatomal distribution and positive straight leg raise test to confirm radiculopathy 1
MRI must demonstrate nerve root compression, moderate to severe disc herniation, or foraminal stenosis that anatomically correlates with the clinical radicular symptoms 1, 2

TFESI should be part of a comprehensive pain management program including physical therapy, patient education, psychosocial support, and appropriate oral medications—not a standalone treatment 1, 2, 5
The Spine Intervention Society's appropriate use criteria explicitly state that repeat steroid injection is appropriate only with documented 50% relief for at least 2 months from the prior injection 1, 2
TFESI must be performed under fluoroscopic guidance to ensure proper needle placement and minimize complications—this is non-negotiable 1, 2, 5

Non-radicular axial back pain without leg symptoms below the knee 3, 4, 1, 2
Absence of MRI-documented nerve root compression correlating with symptoms 1, 2
Failure to complete adequate conservative treatment trial 1, 2
Prior injections without documented 50% relief lasting at least 2 months (for repeat injections) 1, 2
Severe stenosis with progressive neurological deficits requiring urgent surgical decompression 1