- Most epidural steroid injections are uneventful. Serious complications are rare but can be permanent, including spinal cord injury, stroke, epidural hematoma and infection.
- A complication does not by itself show negligence. The review asks whether patient selection, technique and the response to problems were reasonable.
- The FDA issued a safety warning in 2014, and a multidisciplinary working group published safeguards in 2015. These inform the analysis but do not, by themselves, set the legal standard of care.
- The records decide most cases: saved images, contrast documentation, the medication used, blood thinner management and the timeline after symptoms began.
How epidural steroid injections are performed
An epidural steroid injection places anti-inflammatory medication into the space around the spinal nerves to treat pain that travels into an arm or leg. There are three main approaches:
- Interlaminar: the needle enters from the back of the spine, between two vertebrae
- Transforaminal: the needle is placed beside the nerve where it exits the spine
- Caudal: the needle enters through an opening at the tailbone
The approach and the spinal level matter in a case review because the risks differ. Injections in the neck carry different risks from injections in the low back, and the transforaminal approach places the needle near small arteries that supply the spinal cord.
Known complications
- Headache from a dural puncture
- Fainting or a temporary drop in blood pressure
- Infection, including epidural abscess and meningitis
- Bleeding in the spinal canal (epidural hematoma)
- Nerve root or spinal cord injury
- Spinal cord infarction or stroke, usually linked to injection into or injury of an artery
- Steroid effects such as elevated blood sugar
Some of these are recognized risks that can occur without any error. Others raise questions about technique or about how quickly the problem was identified.
Published safety recommendations
In 2014 the FDA required a label warning that injecting corticosteroids into the epidural space can, rarely, cause serious neurologic problems including vision loss, stroke, paralysis and death (FDA Drug Safety Communication).
In 2015 a multidisciplinary working group with representation from national medical societies published consensus safeguards in Anesthesiology (Rathmell et al.). Its recommendations included:
- Using image guidance and contrast to confirm needle position
- Not using particulate steroids for transforaminal injections in the neck
- Using a non-particulate steroid for the first transforaminal injection in the low back
- Keeping sedation light enough that the patient can report symptoms during the procedure
Professional societies have also published guidance on managing blood thinners around spine and pain procedures.
Guidelines like these are evidence of what careful physicians consider. They do not automatically define the legal standard of care, which depends on the patient, the date of the procedure and the jurisdiction. A review weighs what was published and generally accepted at the time the care was given.
What the review examines
- Indication. Did the symptoms, exam and imaging support an epidural injection at that level, and had appropriate conservative care been tried?
- Consent. Were the material risks for that approach and level discussed and documented?
- Pre-procedure screening. Were blood thinners, signs of infection, allergies and diabetes addressed?
- Technique. What approach and level were used, was image guidance used, was contrast injected, and were images saved?
- Medication. Which steroid and what dose, and was it appropriate for the approach?
- Sedation and monitoring. Could the patient communicate during the injection, and how was the patient monitored afterward?
- Response to symptoms. When did new weakness, numbness, severe pain or fever begin, when was it reported, and how fast were imaging and consultation obtained?
Records that carry the case
- Saved fluoroscopy images, including the contrast pattern
- The procedure note, with needle type, level, approach and medication
- Medication administration and sedation records
- Documentation of when blood thinners were stopped and restarted
- Nursing notes, discharge instructions and after-hours call logs
- Emergency department records and post-complication MRI or CT
Missing images or a thin procedure note do not prove a departure, but they make a defensible procedure harder to defend and a meritorious claim harder to prove.
Causation
Causation is often the harder question. The review considers when symptoms began relative to the injection, whether imaging shows a hematoma, abscess or infarct, whether the pattern of deficit fits the level injected, and whether the underlying spine disease or another medical event offers a better explanation. For hematoma and abscess, the interval between first symptoms and treatment is frequently central.
In workers’ compensation cases
Disputes over epidural injections in workers’ compensation usually concern necessity and not fault: whether an injection is appropriate for the diagnosis, how many are reasonable, whether repeat injections are justified by the response to earlier ones, and whether the condition treated is related to the work injury.
Sources
- FDA Drug Safety Communication: label changes to warn of rare but serious neurologic problems after epidural corticosteroid injections (April 23, 2014)
- Rathmell JP, et al. Safeguards to prevent neurologic complications after epidural steroid injections: consensus opinions from a multidisciplinary working group and national organizations. Anesthesiology. 2015
- Section 766.102, Florida Statutes: Medical negligence; standards of recovery; expert witness
This article is general education. It is not legal advice, it is not an opinion about any specific case or patient, and it does not define the standard of care for any particular situation. Every case turns on its own records, facts and jurisdiction.