Tips for Lumbar Nerve Root Injections
April 13, 2023
Lumbar nerve root (periradicular) injections are well-established in the diagnosis and management of lumbar radiculopathy, which occurs in 3-5% of people at some point in their life due to compression, inflammation, or injury to a lumbar spinal nerve root.
Here are 5 tips NYSORA’s team uses to identify the lumbar nerve.
- Identify the different spinal levels with a posterior paravertebral parasagittal sonogram.
- Obtain a transverse sonogram to clearly delineate the spinous processes and adjacent structures (lamina of the vertebral arch, zygapophyseal articulations, inferior and superior facet, transverse process, and vertebral isthmus).
- Rotate the transducer after identifying the correct level in the sagittal plane. The corresponding spinous process is traced until the lamina can be delineated.
- Slide laterally to visualize the facet joint space. Start from this view to identify the intervertebral foramen and corresponding spinal nerve.
- The nerve root leaves the neuroforamen under the ligament between the transverse processes.
Reverse Ultrasound Anatomy
Comparison of sonoanatomy and reverse ultrasound anatomy for lumbar nerve root injections.
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