Spinal Stenosis: Symptoms, Causes & Treatment

Spinal stenosis is a condition in which the bony passage running through the spine and containing the spinal cord and the nerve roots branching from it narrows. With this narrowing, pressure occurs on the spinal cord or nerves, causing neurological symptoms. It most often affects the lower back (lumbar stenosis) and the neck (cervical stenosis). In most cases the cause is degenerative changes related to aging, such as joint arthritis, ligament thickening, bone spurs, and disc herniation, so it is common among older adults.

The symptoms of spinal stenosis differ by its location. In lumbar stenosis (lower back), a characteristic sign is pain, numbness, tingling, or weakness in the legs and buttocks that increases with walking or standing for a while, and clearly eases when sitting or bending forward (so the patient tends to bend or lean on a shopping cart, for example), a phenomenon known as neurogenic claudication. Cervical stenosis (neck) may cause pain, numbness, and weakness in the arms and hands, and in advanced cases may affect balance, walking, and the precision of hand movements. The stenosis may be mild and symptomless and found incidentally.

Spinal stenosis is diagnosed by symptoms, neurological examination, and imaging (especially MRI). Treatment depends on the severity of symptoms and the degree of pressure on the nerves. Most cases begin with conservative treatment: physical therapy and strengthening and stretching exercises, painkillers and anti-inflammatories, activity modification, and sometimes local injections to relieve inflammation and pain. Many patients improve with these measures. Severe cases that do not improve, or that cause increasing weakness or an effect on balance or control of urine or stool (a serious sign), may need surgery to widen the canal and relieve pressure on the nerves. It is important to see a doctor for persistent neurological symptoms in the limbs, as early evaluation helps choose appropriate treatment and prevent symptom worsening.

• Lumbar stenosis: pain, numbness, and weakness in the legs increasing with walking and standing and easing with sitting and bending.
• Cervical stenosis: pain, numbness, and weakness in the arms and hands, and affected balance in advanced cases.
• May be mild and symptomless.

• Age-related degenerative changes (joint arthritis, ligament thickening, bone spurs).
• Disc herniation.
• Sometimes congenital causes or injuries.

• Symptoms and neurological examination.
• Imaging (especially MRI) to confirm the stenosis and its degree.
• Assessing the degree of pressure on the nerves or spinal cord.

Conservative treatment (most cases begin with it)

• Physical therapy, strengthening and stretching exercises, and activity modification.
• Painkillers and anti-inflammatories, and sometimes local injections.

Surgery

• Widening the canal and relieving pressure for severe cases that do not improve or cause increasing weakness.

This content is educational and does not replace medical advice.

• Increasing, persistent weakness or numbness in the limbs.
• Affected balance and walking in advanced cervical stenosis.
• Loss of control of urine or stool (a serious sign requiring emergency care).

• Maintaining spine fitness with strengthening and stretching exercises.
• Proper posture and maintaining a healthy weight.
• Not neglecting persistent neurological symptoms and early follow-up.