When treatment stalls
Failure to improve is information, not failure. It usually points to one of a small number of identifiable problems.
Quick answer
Why is my sciatica not improving with physiotherapy?
The commonest reason is that the pain generator was never confirmed — sciatic-pattern pain can come from a lumbar disc, foraminal narrowing, the sacroiliac joint, the piriformis or a facet joint, and each needs a different treatment. The second commonest is that a disc with genuine mechanical compression is being treated with exercise alone, when the pressure inside it has to be reduced first. If six to eight weeks of physiotherapy have produced no centralisation, the diagnosis or the modality needs changing, not more of the same.
Not all leg pain is discogenic. Sacroiliac dysfunction, piriformis entrapment, facet referral and gluteal tendinopathy all mimic sciatica. Each has distinguishing examination findings, and a hamstring-stretch-and-core programme aimed at the wrong one will not work.
Where a disc is genuinely pressing on a nerve root, strengthening around it does not remove the pressure. Decompression reduces the intradiscal pressure so the wall can recoil; laser addresses the inflammatory soup around the root. Exercise then becomes effective — but the sequence matters.
Twelve weeks of the same three exercises does not build tissue tolerance. Rehabilitation needs measurable progression in load, range and endurance, with re-testing. If nobody has re-measured anything since week one, that is the problem.
A re-examination with neurological testing, correlation of imaging against your actual symptom pattern, and a specific statement of which structure is being treated and what marker will show progress. If you cannot get a straight answer to 'which level and which structure?', get a second opinion.
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Each links to the full clinical page — presentation, diagnosis, protocol and expected session count.
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Answers
You should see centralisation — symptoms retreating towards the spine — within four to six sessions of appropriate treatment. Complete resolution takes longer, but a total absence of directional change by week three warrants reassessment.
No. Disc-related nerve root irritation is the commonest cause, but stenosis, spondylolisthesis, sacroiliac dysfunction and piriformis syndrome all produce sciatic-pattern pain and need different treatment.
They can give useful short-term relief from inflammation, which sometimes creates a window to start rehabilitation. They do not change the mechanics, so pain frequently returns unless the underlying loading problem is addressed.
Progressive weakness, foot drop that is worsening, or any cauda equina sign. Otherwise, a properly delivered non-surgical programme is the appropriate first step and resolves the majority of cases.
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