What is a Foraminal Stenosis?

The spine is made up of 33 vertebral bones. Each of the bones has a large central canal opening for the spinal cord. Additional openings on each side of the spinal cord, called foramens allow the exiting nerves to branch out from the spinal cord to the arms, legs, and other parts of the body. The foramen is the space where the nerve exits, and it is formed by two facet bones (facet Joint) above the disc between the vertebral bodies below the exiting nerves.

What Causes a Foraminal Stenosis?

Normally nerve roots have enough room to exit the spinal canal through the foramen. However, with age, degenerative disc disease, and trauma, the foramen can narrow and compress the spinal cord and/or exiting nerves. Some other conditions such as bulging or herniated discs, calcified ligaments, bone spurs, and spinal arthritis may further affect the foramen. This condition can develop anywhere in the spine, from the cervical to thoracic regions, and is most common in the lumbar region. The average age of patients suffering from spinal and foraminal stenosis is 55. The disease may affect women and men of varying ages and physical activity levels. The patients at highest risk for stenosis are:

What are the Symptoms of a Foraminal Stenosis?

Compression on the spinal and exiting nerve leads to inflammation which can produce many different types of symptoms, depending on the severity of the compression and the area of the spine affected or compressed. In the cervical (neck) region, symptoms may be experienced in the neck, shoulders, and arms down to the fingers. In the lumbar (back) region, symptoms can be felt in the back, buttocks, thighs, knee, calves, feet, and toes. The most common symptoms include:

  • Dull, sharp, or radiating pain into the arms/hands and legs/feet
  • Weakness or numbness in the extremities
  • Sensation of burning or pins and needles
  • Difficulty walking or standing straight

What are the Diagnostic & Treatment Options for a Foraminal Stenosis?

How Long Is The Recovery?


Our Least Invasive Procedure patients’ can begin getting out of bed one hour after surgery and go home shortly afterwards. There will probably be some pain after the procedure and is usually localized to the incision site. Activity is gradually increased and patients can return to non-physical work as early as two weeks. Keep in mind just because there is less or no pain, always consult your physician before beginning any physical work.

Our Minimally Invasive Spine Surgery patients’ post-operative recovery is much longer and may involve overnight stay in the hospital. Once your pain in under control you can go home. Dr. Rodriguez will give you medication to control your pain while you recover at home.

At home, you will need to continue to rest. You will be instructed on how to gradually increase your activity. You may still need to take the pain medications for a while. However, pain and discomfort should begin to reduce within a couple of weeks after surgery. The doctor will discuss with you other techniques for reducing pain and increasing flexibility before you leave for home. MIS patients can return to non-physical work as early as four to six weeks. Spine fusion patients can return to non-physical work as early as two to three months.

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