Ramsook RR, Spinner D, Doshi RR.
Filum Terminale Needle Placement During Caudal Epidural Steroid Injection.
Pain Med 2017;
18:1464-1466. [PMID:
28379464 DOI:
10.1093/pm/pnw288]
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Abstract
Objective
Caudal epidural steroid injections (ESIs) are commonly used to treat lumbar radicular pain. Touhy needles are placed under live fluoroscopic guidance to ensure epidural administration of medication. This is a case report of direct needle and catheter placements into and through the filum terminale during a caudal approach to the epidural space.
Design
Single case report.
Setting
Beth Israel Deaconess Medical Center.
Patient
A 69-year-old woman who suffered from chronic low back and leg pain from lumbosacral radiculopathy, failed back surgery syndrome, and lumbar facet arthropathy.
Interventions
Caudal epidural steroid injection.
Outcome Measures
Patient safety.
Results
The needle and catheter placement were confirmed via intrathecal contrast spread to be in the filum terminale, which prompted abortion of the procedure.
Conclusions
Although caudal ESI is a relatively safe and routine intervention, care must be taken to ensure proper placement of needle, catheter, and injectate. While contrast is injected to ensure appropriate epidural spread, it serves also to reveal unexpected and unwanted spread. We present the first report of a needle being inserted directly into the filum terminale during a caudal ESI.
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