What is this procedure?
An interlaminar (also called translaminar) approach places medicine outside the protective covering of the spinal nerves. Caudal epidurals enter through the sacral opening and are a different access route.
When might it be considered?
Selected spinal nerve irritation causing radiating arm or leg pain; the spinal level and diagnosis determine suitability. Your physician will determine whether this approach is appropriate and discuss alternatives, including non-procedural care.
What to expect
Imaging helps guide the needle after skin numbing. Anesthetic and a corticosteroid may be used. Your clinician reviews your history, medications, allergies, and any relevant tests. The team explains the procedure and obtains your consent. Positioning, skin preparation, local numbing, and imaging guidance may be part of the visit, depending on the procedure.
Tell your care team about pregnancy, infection, medication allergies, or blood-thinning medicines. Do not stop or change medicines without instructions from the clinician managing them.
Potential benefits
Relief may make movement or rehabilitation easier; it does not repair a damaged disc. Benefit and duration vary; some patients experience little or no improvement. An injection is one possible part of a broader care plan.
Possible risks & side effects
Soreness, flushing, blood-sugar changes, bleeding, infection and headache can occur. Rare neurological complications can be severe.
This is not a complete list of risks. Your physician should explain the options, limitations, and consent information specific to your planned procedure.
Epidural steroid injections carry rare risks of serious neurological harm, including paralysis, stroke or death. Corticosteroids are not FDA-approved for epidural administration. Read the FDA safety communication.
Recovery & follow-up
Expect monitoring and individualized activity instructions. Anesthetic effects can be brief; steroid effects may take days. Observation and activity instructions depend on the procedure, medication, and your response. Ask whether you need a driver and when you can return to usual activities. Follow your own discharge instructions rather than a general online timeline.
Contact your care team about unexpected or worsening symptoms. Seek urgent medical help for severe symptoms, difficulty breathing, or new significant weakness.
Common questions
Is a caudal injection the same approach?
No. A caudal injection reaches the epidural space through the sacrum, rather than between vertebral laminae.
Will this procedure relieve my pain?
It may help selected patients, but improvement is not guaranteed. Your physician will discuss realistic goals based on the suspected source of your pain.
Will I need more than one injection?
The need for further treatment depends on your response, the diagnosis, and safety considerations. There is no automatic course of injections that suits everyone.
How should I prepare?
Ask the team for your specific instructions, including medicines, food and drink, transportation, and what to bring. Do not change your medicines based on this page.
Is this available at Columbia Pain Management?
Contact the office to discuss eligibility and scheduling. Your physician will assess whether a procedure is appropriate for you.
Patient education reference: radiologyinfo.org — patient education.