What it is
Lumbar spinal stenosis is the narrowing of the spinal canal or lateral recesses that reduces space for nerves. It is common with age. People notice leg pain or heaviness when walking or standing that eases with sitting or bending forward.
Care improves walking tolerance through flexion-friendly strategies, strengthening of the hips and legs, and aerobic conditioning. Procedures are considered when the function remains limited.
What happens when it occurs
Extension reduces the available space around the nerves. Flexion opens space and eases symptoms. Posture, pacing, and strength improve how far you can walk before symptoms appear.
Common causes and risk factors
- Age-related bony change and thickened ligaments
- Degenerative spondylolisthesis in some people
- Low physical activity and deconditioning
Who is most affected
Older adults in Australia. Women and men are both affected.
Typical symptoms
- Back and leg pain or heaviness with standing or walking
- Relief with sitting or leaning on a trolley
- Numbness or weakness in some cases
When to seek care
If walking distance falls, if balance changes, or if there is progressive weakness. Urgent review for changes in bladder or bowel function.
How we diagnose
History, neurological examination, walking tests, and posture response. MRI confirms anatomy when needed.
Management
- Flexion-friendly walking and cycling plans
- Hip and leg strength, trunk endurance
- Weight management and aerobic conditioning
- Medication and targeted injections for selected cases
- Surgical decompression is considered when function remains limited
Rehabilitation milestones
Phase 1 weeks 0 to 2: symptom control, short, frequent walks with rest breaks.
Phase 2 weeks 2 to 8: strength and endurance, extend walking time, technique for posture change.
Phase 3 months 2 to 6: community distances and daily tasks without flare.
Readiness to progress
- Walking distance improved without a next-day increase in symptoms
- Strength and balance targets met
- Less reliance on the forward lean to walk
Long-term care
- Daily walking or cycling in doses you can repeat
- Leg and trunk strength twice weekly
- Body weight and metabolic health support
Australia snapshot
- Common in older Australians and a frequent reason for spine clinics
- Many improve walking distance with conservative care
- Decompression helps selected patients when function stays limited
Latest insights
Open the space, build the engine, then test the distance in small steps.
Pacing and posture change symptoms more than perfect scans.
