Spinal stenosis: why your walking distance shrinks — and what can be done

Legs that ache and go heavy after a few hundred metres, relief when you sit or lean on a shopping trolley — the classic story of lumbar stenosis.

There is a story spine specialists hear almost daily: "I can walk a few hundred metres, then my legs get heavy and painful. If I sit down for a few minutes — or lean forward on a shopping trolley — it eases, and I can walk again."

That story has a name: neurogenic claudication, the hallmark of lumbar spinal stenosis.

What is happening

With age, the spinal canal can narrow — thickened ligaments, bulging discs and enlarged joints all take up space. Standing upright narrows the canal further; bending forward opens it slightly. That is why walking brings the symptoms on and sitting or leaning forward relieves them — and why cycling often stays comfortable when walking does not.

How it differs from circulation problems

Vascular claudication (from narrowed leg arteries) also limits walking, but relief comes from simply standing still, without needing to sit or bend. Because the treatments are completely different, distinguishing the two matters — examination and imaging settle it.

What can be done

• Conservative care first in many cases: physiotherapy, activity adaptation, medication
• Surgical decompression when walking distance keeps shrinking and quality of life suffers: the narrowed segment is opened to give the nerves room. In selected cases this can be done with minimally invasive or endoscopic techniques; when the spine is also unstable, stabilisation may be added.

The realistic goal

The aim of treatment is to restore comfortable walking and independence. An MRI plus an honest assessment of how far you can actually walk today is where that conversation starts.

This article is general information, not medical advice. Every case is different — please discuss your own situation with a qualified specialist.