Transforaminal nerve root injection

A.Prof Frank Gaillard et al.

Transforaminal nerve root injfection is performed for radicular pain treatment and diagnosis.

See spinal interventional procedures for complications and equipment.

  • cervical spine
  • thoracic spine
  • lumbar spine

The desired needle tip position is just lateral to the pedicle immediately below the transverse process, angled in at 30-40º from vertical. The needle tip (when performed fluoroscopically) should not project beyond the midpoint of the pedicle.

Suitable contrast is injected to confirm that the needle has not breached the dura. The nerve root can be seen outlined by contrast. Steroid and anesthetic can then be injected, and will wash the contrast away.

Interventional procedures
Share article

Article information

rID: 2194
Synonyms or Alternate Spellings:
  • CT guided periradicular therapy
  • Transforaminal nerve root block

Support Radiopaedia and see fewer ads

Cases and figures

  • Case 1
    Drag here to reorder.
  •  Case 2
    Drag here to reorder.
  • Case 3: cervical - C6/7
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.