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Published on: August 5, 2014
Serious Neurological Complication Resulting from Inadvertent Intradiscal Injection During Fluoroscopically Guided
Nicolas Amoretti1, Jean Baqué2, Stéphane Litrico2
1Hopital Pasteur 2, service de radiologie interventionnelle, Chu de Nice, 30, voie romaine, 06001, Nice, France. amoretti.n@chu-nice.fr.
Abstract:
We describe the case of a 30-year-old patient who was referred for lumbar epidural corticosteroid injection due to right L5 radiculopathy. Two months earlier, MRI demonstrated a right large paracentral L4-L5 disk extrusion causing disabling L5 radiculopathy. The L4-L5 level was selected for interlaminar injection, using fluoroscopic guidance. During injection, the patient developed severe pain in both lower extremities. Thus, the procedure was immediately terminated. Paraplegia occurred within several minutes. Urgent lumbar spine CT and MRI demonstrated contrast material in a massive extruded disk fragment and substantial increase in size of the disk extrusion compared to pre-injection MRI. Emergency surgery was performed for lumbar decompression and discectomy. Although rare, serious neurological complication can result from inadvertent intradiscal injection of contrast material during lumbar epidural injection. This case illustrates the importance of recognizing the possibility of dynamic change in the size of an extruded disk fragment when the MRI precedes injection by a substantial time interval. LEVEL OF EVIDENCE: IV, Case Series.
Insights
Inadvertent injection into a herniated disc during epidural steroid procedures can cause severe neurological deficits. Recognizing dynamic disc changes is crucial for patient safety during lumbar procedures.
Area of Science:
- Neurology
- Radiology
- Neurosurgery
Background:
- Lumbar epidural corticosteroid injections are common for radiculopathy.
- Magnetic resonance imaging (MRI) is used to guide these procedures.
Observation:
- A patient with L5 radiculopathy underwent lumbar epidural injection.
- During the procedure, severe leg pain developed, leading to termination.
- Immediate paraplegia occurred post-procedure.
Findings:
- Imaging revealed contrast material within a massive extruded disc fragment.
- The disc extrusion significantly increased in size compared to pre-injection MRI.
- This suggests inadvertent intradiscal injection occurred.
Implications:
- Rare but serious neurological complications, like paraplegia, can arise from lumbar epidural injections.
- Dynamic changes in disc herniation size between MRI and injection necessitate careful consideration.
- This case highlights the importance of reassessing imaging findings for patient safety.
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