Contraindications to Epidural Steroid Injection in the Spine
The absolute contraindications to ESI include active local or systemic infection, coagulopathy or therapeutic anticoagulation, and allergy to injected medications, while relative contraindications include poorly controlled diabetes, immunosuppression, pregnancy, and recent corticosteroid use. 1
Absolute Contraindications
These represent situations where ESI should not be performed due to unacceptable risk of catastrophic complications:
Infection
- Active local infection at the injection site (cellulitis, abscess)
- Systemic infection or sepsis
- Epidural abscess risk increases dramatically in infected patients 2
Coagulopathy and Anticoagulation
- Therapeutic anticoagulation (warfarin, heparin, direct oral anticoagulants)
- Coagulopathy from any cause (liver disease, hemophilia, thrombocytopenia)
- Risk of epidural hematoma with potential paralysis 3
- Must follow American Society of Regional Anesthesia guidelines for timing of neuraxial procedures relative to anticoagulant therapy 3
Allergy
- Known hypersensitivity to corticosteroids, local anesthetics, or contrast agents used during the procedure 1
Relative Contraindications
These warrant careful risk-benefit assessment and may require optimization before proceeding:
Metabolic Conditions
- Poorly controlled diabetes mellitus
Immunosuppression
- Immunocompromised patients (HIV, chemotherapy, chronic corticosteroid use)
- Increased infection risk
- Requires heightened vigilance for infectious complications 5
Pregnancy
- Pregnancy - particularly first trimester
- Fluoroscopic guidance involves radiation exposure
- Corticosteroid effects on fetus
Recent Corticosteroid Use
- Recent systemic corticosteroid administration
- Risk of hypothalamic-pituitary-adrenal axis suppression with repeated doses 4
- Consider spacing injections appropriately
Cardiovascular Instability
- Unstable cardiovascular disease
- Procedure-related stress and positioning may be poorly tolerated
Critical Safety Considerations
Catastrophic Neurologic Risks
The FDA has highlighted rare but devastating complications including 6:
- Spinal cord infarction
- Paralysis (paraplegia, quadriplegia)
- Stroke
- Cortical blindness
- Death
These occur within minutes to 48 hours post-injection and are related to:
- Inadvertent intra-arterial injection of particulate steroids
- Vascular injury during needle placement
Risk Mitigation Strategies
Mandatory safety measures include 1, 6:
- Image guidance required (fluoroscopy preferred) - never perform blind
- Use of nonparticulate steroids (dexamethasone) for transforaminal approaches to reduce embolic risk
- Real-time contrast injection to confirm needle position and rule out vascular uptake
- Detailed knowledge of spinal vascular anatomy
- Aspiration before injection (though negative aspiration doesn't guarantee safety)
Clinical Context
When ESI Should NOT Be Offered
The 2025 BMJ guideline provides strong recommendations AGAINST ESI for 7:
- Chronic axial (non-radicular) spine pain - moderate certainty evidence shows little to no benefit
- Patients seeking treatment where there is very low certainty of benefit but moderate to high certainty of harm
Acceptable Use (If Performed)
ESI may be considered only for:
- Radicular pain from disc herniation (though even here, evidence shows only modest benefit at best)
- Must be part of multidisciplinary care, not stand-alone therapy 1
- Patient must understand limited evidence for benefit and potential for serious harm
Practical Algorithm
Before proceeding with ESI, verify:
- ✓ No active infection (local or systemic)
- ✓ Coagulation status normal and no anticoagulation
- ✓ No medication allergies to planned injectates
- ✓ Diabetes controlled (if present)
- ✓ Image guidance available (fluoroscopy)
- ✓ Operator trained in spinal anatomy and complication management
- ✓ Patient understands limited benefit and serious risks
If ANY absolute contraindication present → Do not proceed
If relative contraindications present → Optimize first or reconsider indication
Important Caveats
- The evidence for ESI efficacy is weak to absent even in ideal candidates 7
- Risk of paralysis and death, though rare, is real and documented 7, 6
- Never perform ESI without image guidance - this is non-negotiable 1, 6
- Anticoagulation must be held per established guidelines - epidural hematoma can cause permanent paralysis 3
- Consider that the 2025 BMJ guideline recommends against ESI for most chronic spine pain conditions based on lack of meaningful benefit 7