Spinal stenosis - narrowing of the spinal canal that compresses the nerves - causes leg pain, weakness, numbness, and severely limited walking distance. The classic symptom is "neurogenic claudication": your legs become increasingly painful and weak the longer you walk or stand, and you have to stop and lean forward or sit down for relief. This directly maps onto PIP mobility scoring.
Which PIP Activities Does Spinal Stenosis Affect?
Moving Around (Activity 12) - This is usually the highest-scoring activity. Spinal stenosis limits walking distance progressively. Many people can walk 20-50 metres before leg pain and weakness force them to stop. Leaning on a shopping trolley helps (flexing the spine opens the canal slightly), but that itself is using an aid. Standing still is often worse than walking slowly. If you can't walk 50 metres reliably, you qualify for standard mobility. Under 20 metres qualifies for enhanced.
Preparing Food (Activity 1) - Standing at a worktop triggers symptoms. You may need to sit down every few minutes, making cooking take 2-3 times longer than normal. Bending to reach the oven triggers back pain. If you use a perching stool in the kitchen, that's an aid.
Washing and Bathing (Activity 4) - Standing in the shower for more than a few minutes triggers leg symptoms. Getting in and out of the bath is difficult with leg weakness. Bending to wash feet is painful.
Dressing (Activity 6) - Bending to put on socks, shoes, and trousers triggers pain and leg symptoms. Many people need a sock aid, long shoe horn, or help from another person.
Managing Therapy (Activity 3) - Pain medication (gabapentin, pregabalin, opioids), physiotherapy, spinal injections, surgical consultations, post-operative rehabilitation. If you've had decompression surgery, ongoing monitoring and physiotherapy continue.
The "Shopping Trolley Test"
Spinal stenosis has a characteristic feature: leaning forward (flexion) relieves symptoms. This is why people with stenosis can often walk further pushing a shopping trolley. Assessors sometimes use this against you: "can walk around Tesco." But using a trolley for support is using an aid, walking slowly through a shop is not walking at normal pace, and the distance covered in a supermarket (with frequent stops to look at shelves) is not the same as walking continuously on a pavement.
Post-Surgery
Decompression surgery doesn't always fix spinal stenosis completely. Many people still have reduced walking distance, ongoing nerve damage, and residual pain after surgery. If you've had surgery but still have significant limitations, you still qualify. Get your surgeon to confirm what permanent restrictions remain.
What Evidence Helps?
- Spinal surgeon or orthopaedic letters
- MRI results showing stenosis severity
- Nerve conduction studies
- Physiotherapist assessment of walking distance
- Pain clinic letters
- Partner statement describing daily limitations
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