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Lumbar spinal stenosis develops when either the spinal canal or nerve passageways (foramen) become narrow. It is a common cause of low back pain. If the spinal canal is narrowed, the disorder is also termed lumbar central stenosis. If the foramen is narrowed, it is called lumbar foraminal stenosis. When either condition develops, the spinal cord and/or nerves are compressed. Sometimes, patients have both types of lumbar stenosis.
Some patients are born with this narrowing (congenital). However, most cases of lumbar stenosis develop in patients over age 50 and results from aging and wear and tear on the spine. Other common causes include osteoarthritis, degenerative disc disease, or bone spurs (osteophytes).
The symptoms of lumbar spinal stenosis include:
Our comprehensive diagnostic process includes:
Above: Axial (overhead view) MRI of the lumbar spine. The upper row shows the normal diameter of the spinal canal as white space and is oval shaped. The white space is the cerebral spinal fluid. The lower row shows marked stenosis; the canal is narrowed and triangular in shape. The narrowing is often worse along the side edges and is called foraminal stenosis.
Above: Sagittal (side view) MRI of similar stenosis at L4-L5. Notice how the disc degeneration, bulging, and facet arthrosis (black areas) create a pincer effect of the nerve sac (white).
Many different nonsurgical treatments help relieve symptoms. These include:
In conjunction with these treatments, our staff will educate you about healthy posture and proper body mechanics.
If nonsurgical measures are not successful, surgery may be recommended. There are different surgical techniques to treat lumbar stenosis. The goal of surgery is to decompress, or take pressure off the spinal cord and nerve roots. Decompression involves removing or trimming whatever is causing compression. Your surgeon will discuss the best procedure for you, as well as explain the benefits and risks.
The procedures listed above are the most common. A different procedure not listed may be recommended by your surgeon.
Most patients begin to get out of bed the same day lumbar spinal stenosis surgery is performed. Activity is gradually increased and patients are discharged home within a few days after their procedure, depending on the type and extent of the surgery. As with most surgeries, expect some pain after the procedure. Your doctor will provide pain medication to help keep you comfortable.
At home, you need to continue to rest. You are given instructions how to safely and gradually increase activity. Pain medications may be needed for a while. However, pain and discomfort should begin to reduce within a week or two after surgery. Information about other ways to reduce pain and increase flexibility is provided, along with instructions about your return to work and other activities.
In addition treatment, our medical professionals have a deep commitment to patient education. By helping you understand the cause of your condition, we can help you eliminate risk factors and instill spine healthy habits for a lifetime. While you are under our care, our medical staff will provide you with excellent information to help you recover, minimize risk factors, and stay healthy.