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HSS Doctor Explains What You Need To Know About Spinal Stenosis

Dr. Andrew Sama of HSS.
Dr. Andrew Sama of HSS. Photo Credit: Hospital for Special Surgery

STAMFORD, Conn. -- Hospital for Special Surgery's Dr. Andrew Sama answers some questions about spinal stenosis.

What is spinal stenosis?

Spinal stenosis is a narrowing of the spinal canal, which results in pressure on the nerves either in the central part of the canal, in the sides of the canal under the joints, or in the windows through which the nerves exit the canal. This can happen in the neck, mid or low back. The pressure on the nerves results in pain, numbness or weakness in the extremities and in some cases can make standing or walking painful.

What are some of the causes of spinal stenosis?

Stenosis can be congenital or developmental from a young age. It can also be caused by arthritic changes of the facet joints and narrowing of the discs between the spine bones with overgrowth of the ligaments that help stabilize the vertebrae. It can also be caused by slippage of one vertebra on the next or by scoliosis or curvature of the spine.

What demographic is often at risk?

Patients aged 50 and above are most commonly at risk for stenosis caused by arthritic changes to the spine. Developmental or congenital stenosis may affect patients in their late teens or twenties and above.

What can be done to treat spinal stenosis?

The early symptoms of stenosis can be treated with activity modification and anti- inflammatory medications. When symptoms become more significant, epidural steroid injections can be tried. If none of these give relief, then surgery to decompress the stenosis may be indicated. Depending on the cause of the stenosis and where it is located, fusion may also be required.

Is there ongoing research regarding spinal stenosis?

Hospital for Special Surgery has been committed to the development of research and clinical expertise in this area of medicine. Additional information from HSS on spinal stenosis can be found here.

Dr. Andrew Sama specializes in the evaluation and surgical management of all traumatic, degenerative, and deformity-related conditions of the cervical, thoracic, and lumbosacral spine. He practices at both the HSS Outpatient Center in Stamford and the hospital’s main campus in New York.