Transforaminal Block: “Sniper” Pain Relief for Pinched Nerves

When an intervertebral disc degenerates (forming a hernia), it often presses on the spinal nerve precisely where the nerve exits the spine — in the so-called intervertebral foramen. This causes unbearable, burning pain that “shoots” from the lower back down the entire leg to the foot (or from the neck into the arm). Ordinary pain pills or ointments are completely ineffective in this situation.

To quickly return you to a life without pain, specialists at St. Luke’s Clinic use the most precise method of injection treatment — transforaminal steroid block.

How does a transforaminal block differ from a conventional epidural?

If a classic epidural block acts like a “shower,” washing medication over a wide area of the spinal cord and several nerves at once, then a transforaminal block is a sniper shot.

The doctor injects the drug directly into the narrow opening where a specific, single diseased nerve root is pinched. This allows for the delivery of the maximum concentration of anti-inflammatory medication (corticosteroid) precisely to the epicenter of the problem. Thanks to such precision, the swelling of the nerve subsides faster, and the pain relief effect is significantly more powerful and long-lasting.

When is a transforaminal block prescribed?

This procedure is the “gold standard” of conservative pain treatment before considering surgical intervention. Key indications include:

• Radiculopathy (radicular syndrome): acute pain radiating to the leg or arm, accompanied by a tingling sensation, muscle weakness, or numbness.
• Foraminal disc herniations: hernias located precisely in the nerve exit foramen.
• Foraminal stenosis: narrowing of the foramen due to bone tissue overgrowth (osteophytes) with age.
• Sciatica: severe inflammation of the sciatic nerve.

100% Safety: Why do we use X-ray guidance?

Inserting a needle into an opening a few millimeters in size without touching the nerve itself is a task impossible to perform “blindly” or “by touch.”

At St. Luke’s Clinic, all transforaminal blocks are performed in a modern operating room under continuous X-ray guidance (C-arm).

1. The doctor sees the spine and the needle’s advancement on the monitor with millimeter precision.
2. Before injecting the therapeutic drug, a safe contrast agent is always injected. It “highlights” the nerve on the screen and guarantees the doctor that the medication will bathe the inflamed root, and not enter a blood vessel or surrounding tissues.

How is the procedure and rehabilitation?

The procedure is minimally invasive and does not require general anesthesia.

• Comfort: The skin and muscles are pre-anesthetized with a local anesthetic, so the procedure feels simply like a sensation of pressure or fullness. The entire procedure takes 15–20 minutes.
• Quick result: The anesthetic “turns off” the pain almost instantly. Patients often note that the leg or arm that has been hurting for months stops hurting while still on the operating table. The anti-inflammatory effect of the hormone develops within 2-5 days.
• Discharge: After just 1-2 hours of rest under medical supervision, you will be able to leave the clinic independently and return home.

A transforaminal block gives the patient the main thing — a “pain-free window” (from several months to a year), during which they can calmly and comfortably undergo a course of therapeutic exercises (physical therapy) to strengthen the back.

Do not put up with pain and limited movement! Make an appointment with the pain management specialists at St. Luke’s Clinic for accurate diagnosis and targeted therapy.