Understanding Spinal Stenosis
What patients commonly notice
Narrowing around the spinal cord or nerves may cause pain, weakness, numbness or reduced walking tolerance. The exact pattern and severity can vary, so a clinical assessment is important before deciding on treatment.
Common symptoms
- Leg pain or heaviness when standing and walking
- Relief with sitting or bending forward
- Numbness, weakness or balance difficulty
Causes and risk factors
There may be more than one contributing factor. Common possibilities include:
- Facet-joint arthritis and thickened ligaments
- Disc bulging and age-related narrowing
- Congenitally narrow spinal canal or previous surgery
How is spinal stenosis assessed?
Assessment combines the symptom pattern with a neurological and musculoskeletal examination. Existing scans are reviewed and further X-rays, MRI or other tests are requested only where they are likely to change the treatment plan.
Treatment options
Treatment is matched to the diagnosis, symptom severity, general health and the activities you need to return to. Options may include:
- Conditioning, medication and activity modification
- Selected epidural or nerve-root injection
- Decompression with or without fusion when neurological compression is limiting
Surgery is not automatically the first step. When it is considered, the likely benefit, alternatives and recovery requirements should be discussed clearly.
Common questions
Why do my legs improve when I sit or bend forward?
Flexion can temporarily increase the space available for the lumbar nerves. This is why walking uphill, leaning on a trolley or sitting may feel easier than standing upright.
Will spinal stenosis continue to worsen?
The course varies. Some people remain stable for years, while others develop increasing walking limitation or neurological symptoms. Change in function is often more important than the scan appearance alone.
When is decompression surgery considered?
Surgery may be considered when nerve compression causes major walking limitation, persistent leg symptoms or progressive weakness despite appropriate nonsurgical care. Fusion is added only when instability or another indication is present.
This page provides general patient information and does not replace a consultation or personalised medical advice.