What is a Lumbar Transforaminal Epidural Steroid Injection?
A lumbar transforaminal epidural steroid injection is a minimally invasive, outpatient procedure used to treat lower back and radiating leg pain caused by inflammation and irritation of the spinal nerve roots. By delivering a steroid-based medication directly into the epidural space around the targeted nerve root, this injection can help reduce swelling and alleviate symptoms.
How is a Lumbar Transforaminal Epidural Steroid Injection Performed?
To perform a lumbar transforaminal epidural steroid injection:
- 1. The patient lies face-down with a cushion placed under the abdomen to help open up the spaces around the spine.
- 2. A local anesthetic is used to numb the skin and tissues overlying the targeted spinal level.
- 3. Under fluoroscopic (X-ray) guidance, the physician carefully inserts a needle into the foramen – the opening where the nerve root exits the spinal canal.
- 4. A contrast dye is injected through the needle to confirm its proper positioning within the epidural space around the nerve.
- 5. Once the placement is verified, the physician injects the steroid-anesthetic medication mixture to bathe the irritated nerve root and reduce inflammation.
What Supplies and Medications are Used for a Lumbar Transforaminal Epidural Steroid Injection?
The key components include:
- – Local anesthetic (e.g., lidocaine) to numb the injection site
- – Contrast dye to visualize the epidural space
- – Corticosteroid medication (e.g., triamcinolone, dexamethasone) to reduce inflammation
- – An additional anesthetic (e.g., bupivacaine) to provide short-term pain relief
The physician selects the specific medications and dosages based on the patient’s individual needs and condition.
What to Expect After a Lumbar Transforaminal Epidural Steroid Injection?
After the procedure, the patient may experience some mild discomfort or soreness at the injection site, but this is usually temporary and resolves within a few days. Many patients begin to feel a gradual reduction in their lower back and leg pain within the first week as the anti-inflammatory effects of the steroid medication take effect.
Some patients may require additional injections over time to maintain the benefits. The physician will provide instructions on any activity restrictions and schedule any necessary follow-up appointments. Patients should report any concerning symptoms, such as increased pain, numbness, or weakness to their healthcare provider.