Spinal stenosis is narrowing of the spinal canal or the foramina (the openings where nerves exit). It usually comes from bulging discs, enlarged facet joints and thick ligaments. It causes leg pain and heaviness when you walk. Sitting or leaning forward eases it.
What makes it a problem is not the number on the scan. It is what happens when you walk.
What is spinal stenosis?
The spinal canal or the foramina get narrow. It usually takes a mix of bulging discs, enlarged facet joints and thick ligaments.
The hallmark is neurogenic claudication — leg pain and heaviness when walking, eased by sitting or leaning forward.
What does spinal stenosis feel like?
- Leg pain, heaviness or numbness that comes on after you walk about the same distance each time.
- Relief when you sit, or lean over a shopping cart.
- Easier walking uphill than downhill, because bending forward opens the canal.
- Back pain, often milder than the leg symptoms.
How do we treat spinal stenosis?
- Epidural steroid injection to reduce inflammation in a tight canal.
- Physical therapy focused on forward-bending exercise and building how far you can walk.
- Referral to a surgeon when walking distance stays badly limited despite treatment.
To be seen, call us or request an appointment. If this began with a crash or a fall, see accident and injury care.
Is it spinal stenosis or a circulation problem?
The most useful split that gets missed is neurogenic versus vascular claudication. Neurogenic means from the nerves. Vascular means from the blood vessels. It matters because they look almost the same — leg pain when walking, eased by stopping. Both are common at the same age, and you can have both at once.
The difference is what eases it. Neurogenic claudication is eased by bending forward, not by rest. Patients can cycle much further than they can walk, and they lean forward on a shopping cart. Vascular claudication is eased by rest in any position. Getting this wrong sends people to the wrong specialist for months.
What is the long-term outlook for spinal stenosis?
Stenosis does not follow the steady downhill slide its name suggests. Symptoms go up and down over years. A large share of people stay stable or improve without surgery over long follow-up.
What does reliably get worse is how far you can walk once you stop walking. Losing fitness piles on top of the mechanical problem. That is why keeping up your distance — through interval walking, cycling and forward-bending work — matters more than any single treatment.
When this becomes urgent
New or fast-worsening leg weakness, saddle numbness, or bladder and bowel change need emergency care. In cervical stenosis (in the neck), unsteady walking and clumsy hands are the warning signs. They should not be watched for months.
Common questions
What exercises should I avoid?
Long periods of bending backward. Repeated backward bends, press-ups lying face down and overhead lifting with an arched back tend to set it off. Forward-bending work is usually easier to handle.
Spinal Stenosis: Exercises to Avoid explains what that looks like.
Does stenosis always get worse?
Not always. Symptoms often go up and down over years instead of steadily getting worse.
Why does spinal stenosis hurt when I walk but not when I sit?
Standing tall and walking keep an already tight canal narrow. So the nerves get squeezed, and the legs ache and feel heavy. Sitting or leaning forward bends the spine and opens the canal again. That is why many people feel better leaning on a shopping cart. They walk uphill more easily than downhill, and can cycle much further than they can walk.
Can spinal stenosis be treated without surgery?
Often, yes. Symptoms tend to rise and fall over years. A large share of people stay stable or improve without surgery over long follow-up. We start with an epidural steroid injection to calm inflammation in a tight canal. We add physical therapy built on forward-bending exercise and walking farther. We refer for surgery when walking distance stays badly limited despite that treatment.
What is the best exercise for spinal stenosis?
The exercise that keeps you walking. How far you can walk drops fastest in people who stop walking. So holding on to your distance through interval walking, cycling and forward-bending work matters more than any single treatment. Forward-bending positions are usually easy to handle. Repeated backward bending, press-ups lying face down and overhead lifting with an arched back tend to set symptoms off.
When is spinal stenosis an emergency?
Get emergency care for new or fast-worsening leg weakness, numbness in the saddle area, or any change in bladder or bowel control. When the narrowing is in the neck, the warning signs are unsteady walking and clumsy hands. Those need to be checked promptly, not watched for months.
Sources
- Katz JN et al. Diagnosis and Management of Lumbar Spinal Stenosis: A Review. JAMA, 2022. PubMed 35503342
- Webb CW et al. Lumbar Spinal Stenosis: Diagnosis and Management. American family physician, 2024. PubMed 38648834
- Lurie J et al. Management of lumbar spinal stenosis. BMJ (Clinical research ed.), 2016. PubMed 26727925
- Ammendolia C et al. Non-operative treatment for lumbar spinal stenosis with neurogenic claudication: an updated systematic review. BMJ open, 2022. PubMed 35046008
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