Sciatica that won’t go away: what to do when treatments are no longer sufficient?
You’ve tried medications, exercises, physiotherapy, manual treatments, or an injection, but the pain still radiates down the leg? The next step isn’t necessarily to add another random treatment: you must first reassess the situation.
A persistent sciatica may indicate that a nerve root remains irritated, that the diagnosis needs to be clarified, that the chosen approach does not match the dominant mechanism, or that a specialized medical opinion becomes relevant. This page helps you recognize the level of priority and prepare a better-informed decision.
When do we say that sciatica ‘does not go away’?
There is no specific number of days that alone determines that a treatment has failed. Duration matters, but the direction of progress is more important. Intense pain for five days that begins to centralize towards the hip is not equivalent to pain that has lasted several weeks now radiating down to the foot with new weakness.
| Evolution | What this may mean | Reasonable action |
|---|---|---|
| Gradual improvement | Pain is not radiating as far down, activities are increasing, and flare-ups are becoming shorter. | Continue the tolerated plan and maintain monitoring criteria. |
| Plateau | Pain and function remain nearly unchanged despite a sufficiently followed trial. | Reassess the diagnosis, the actual dosage of the treatment, and the objectives. |
| Mechanical aggravation | Pain radiates further down or some activities become progressively impossible. | Reduce obvious provocations and request a clinical reassessment. |
| Neurological deficit | Weakness, foot that trips, difficulty on the heels or toes, decreasing sensitivity. | Quickly seek medical advice; urgent if the deficit is significant or progresses rapidly. |
NICE defines chronic pain as lasting at least three months, but one should not wait for this threshold when a function deteriorates or a neurological sign appears. Conversely, pain still present after a few days does not automatically mean that treatment is ineffective.
Why can sciatica persist despite treatments?
Claiming “I’ve tried everything” often conceals very different situations. Some treatments were only briefly attempted; others were well followed but targeted a mechanism that did not correspond to the dominant problem. Sometimes, the initial diagnosis was incomplete or a new situation arose.
- The nerve root remains mechanically irritated. A herniated disc, foraminal stenosis, narrowing of the canal, or a decrease in disc height can continue to reduce the available space.
- The diagnosis needs to be revised. The hip, the sacroiliac joint, the fibular nerve, a neuropathy, a vascular condition, or another cause can produce nearby symptoms.
- The treatment was not suitable for the profile. An exercise, a stretch, or a popular manipulation may be poorly tolerated by an irritable nerve root.
- The actual exposure was insufficient or excessive. A progression that is too rapid, repetitive efforts at work, or prolonged rest can hinder the accurate measurement of the response.
- The pain has become more complex. Sleep, fear of movement, stress, deconditioning, and nervous system sensitization can maintain limitations without making the pain imaginary.
- A more serious condition must be ruled out. An infection, fracture, tumor, or urgent neurological syndrome is less common but should be investigated when the signs suggest it.
What a good reassessment should check
A reassessment is not simply a repetition of the initial exam. It compares the current state to the starting situation and seeks what explains the lack of progress. Depending on the area of practice of the consulted professional, it may lead to a referral to a doctor, specialist, or emergency department.
Trajectory and centralization
Is the pain going lower or higher? Is it more in the leg than in the back? Has the territory changed?
Strength and motor control
Putting your foot down, walking on your heels or toes, climbing stairs, and controlling your knee provide neurological clues.
Sensitivity and Reflexes
The location of numbness and the evolution of reflexes can help distinguish L4, L5, S1, or another impairment.
Real Function
Walking distance, sitting duration, sleep, driving, work, personal care, and abandoned activities.
Truly Attempted Treatments
Name, duration, frequency, progression, beneficial effects, aggravations, and side effects of each option.
Warning Signals and Related Diagnoses
Fever, weight loss, trauma, known cancer, bilateral involvement, abnormal pulse or atypical hip pain.
Is an MRI necessary when sciatica persists?
Imaging is not routinely recommended at the onset of low back pain or sciatica without warning signs. However, an MRI may become useful when symptoms are prolonged, resist reasonable treatment, are accompanied by a deficit, or when a result could alter management.
An image is not a complete diagnosis. Protrusions and signs of wear can also exist in people without pain. The report must be compared to the affected side, the trajectory of the pain, strength, sensitivity, and reflexes. The goal is not to ‘find something’, but to check if an anomaly reasonably explains the condition and changes the decision.
Imaging often varied
Recent symptoms, reassuring examination, improved function, and absence of warning signs.
Imaging sometimes relevant
Persistent or disabling symptoms, neurological deficit, preparation for an injection or surgical opinion, or results likely to change treatment.
Which path to choose now?
| Your situation | Next step |
|---|---|
| Urinary or intestinal trouble, saddle anesthesia, significant or rapid weakness | Immediate medical emergency; do not wait for a clinic appointment. |
| Weakness or numbness that progresses | Quick medical advice and neurological examination; imaging as per evaluation. |
| Persistent pain that severely limits daily life | Structured medical or clinical reevaluation, with assessment of treatments and imaging criteria. |
| Hernia or concordant stenosis, without urgency, surgery not considered | Discussion of conservative options, their limits, and measurable objectives; a TAGMED assessment may be considered. |
| Well-conducted non-surgical treatment without improvement in pain or function | Specialist opinion when imaging is concordant; compare infiltration, continued conservative treatment, and surgery as applicable. |
Before concluding that a treatment ‘does not work’
A therapeutic failure must be defined. Has the pain decreased transiently? Has walking or sleeping improved? Have symptoms shifted towards the back or, conversely, more towards the foot? Was the treatment stopped due to an adverse effect? These nuances change the next steps.
| Option already tried | Questions to document | What to avoid |
|---|---|---|
| Medications | Name, dosage, duration, effect, drowsiness, contraindications, and prescriber’s plan. | Increase, combine, or abruptly stop a medication without medical advice. |
| Exercises or rehabilitation | Type, frequency, progression, effect on the leg, walking, and function. | Repeat a movement that durably lowers or intensifies symptoms. |
| Manual therapy | Measurable benefit, duration of effect, neurological reaction, and place in an active plan. | Multiplying passive techniques without evaluation or functional objective. |
| Infiltration | Target level, product, improvement of the leg, duration, and side effects. | Interpreting a partial response as a guarantee or repeating without medical indication. |
| Rest and adaptation | Maintained activities, tolerated positions, sleep, and gradual recovery. | Prolonged bed rest when not medically indicated. |
Can neurovertebral decompression be the next step?
Motorized neurovertebral decompression is a form of controlled traction applied on a specialized table. It aims to temporarily alter the mechanical constraints on the lumbar region. It does not remove a herniated disc, does not ‘put’ a disc back in place, is not surgical decompression, and is not suitable for all sciatica cases.
The quality of data on lumbar traction remains limited and heterogeneous. A systematic review observed a short-term benefit of mechanical traction in the supine position when it was added to physiotherapy in low-quality studies, while higher-quality studies in the prone position did not show a significant benefit. NICE recommends against offering routine traction for low back pain with or without sciatica.
This uncertainty necessitates a cautious approach: screening for contraindications, defining functional objectives before the trial, monitoring leg pain, and stopping or redirecting if symptoms worsen. No specific commercial protocol can be declared superior based on this review.
Who can request a TAGMED evaluation — and who should consult elsewhere first?
A conservative evaluation may be discussed if
- radicular pain persists despite reasonable care;
- the presentation seems mechanical and varies with positions or loads;
- an imaging report describes a disc or foraminal impairment consistent with the existing imaging;
- there is neither neurological emergency nor rapidly progressive weakness;
- you agree to a cautious trial with measurable goals and no guarantees.
A medical or specialized opinion should take precedence if
- weakness, numbness, or sphincter disorder appears;
- a fracture, infection, tumor, or inflammatory disease is possible;
- the pain is extreme, nocturnal, and unexplained or is accompanied by fever or weight loss;
- surgery has been recommended or a recent intervention imposes restrictions;
- significant osteoporosis, instability, pregnancy, or another contraindication must be clarified.
Preparing an evaluation for persistent sciatica at TAGMED Clinic
A first evaluation aims to document the pain pathway, function, tolerance to movement, accessible neurological signs in the field of practice, and results of treatments already attempted. It may lead to a conservative proposal, a request for additional information, or a recommendation to consult a physician or specialist.
Bring your reports
IRM, X-ray, CT scan, electromyography, and relevant notes, if you have any.
Chronology
Start date, exacerbations, periods of improvement, treatments, doses, frequency, and effects.
Measure your function
Sitting time, walking distance, sleep, driving, work and movements that have become impossible.
TAGMED Clinic Montreal / Mont-Royal
1140 Beaumont Avenue
Mont-Royal, QC, H3P 3E5
Phone: 1 877 672-9060
Days: Tuesday and Thursday
TAGMED Clinic Terrebonne
1150 Lévis Street, Suite 200
Terrebonne, QC, J6W 5S6
Phone: 450 704-4447
Days: Monday, Wednesday, and Friday
To understand the service before booking, check the page of the neurovertebral decompression of the TAGMED Clinic. The presence of the service does not mean it is suitable for your situation.
Frequently asked questions about sciatica that doesn’t go away
How long can sciatica last?
The duration varies depending on the cause, severity, function, and neurological progression. Many sciatica cases improve gradually, but pain that persists for several weeks, significantly limits activities, or resists treatment deserves reevaluation. Do not wait in case of weakness or signs of emergency.
Why isn’t my sciatica improving despite exercises?
Exercise can be beneficial, but the type, dosage, and progression must fit your profile. A movement may be too irritating, the cause may differ from what was presumed, or compression may persist. Note if the pain extends further down the leg and have the program reevaluated.
Does persistent sciatica mean surgery is necessary?
No. Duration alone does not determine the need for surgery. A surgical opinion becomes more relevant when pain or function does not improve despite non-surgical care, and imaging shows a concordant anomaly. However, certain neurological situations require urgent management.
Should I request an MRI after several weeks?
An MRI can be useful if the result is likely to change management, especially in cases of deficits, prolonged symptoms, or before a targeted intervention. It is not automatic. A doctor determines its relevance and interprets the report in conjunction with the clinical examination.
What should I do if medications don’t relieve sciatica?
Do not exceed the dose, do not combine medications, and do not stop suddenly without advice. Communicate with the prescriber or a pharmacist to review efficacy, risks, and alternatives. Severe uncontrolled pain or accompanied by a deficit requires urgent evaluation.
Can an injection help when other treatments fail?
An epidural injection may be discussed by a doctor in certain sciatica cases, particularly acute and severe ones. Its effect varies and may be temporary. It is not suitable for all causes and carries risks that must be explained.
Does neurovertebral decompression correct the herniation?
No. This statement is too definitive. Motorized decompression applies controlled traction and aims to temporarily alter mechanical constraints. It does not remove the herniation, does not guarantee its retraction, and does not replace an indicated surgical decompression.
How do I know if I am eligible for motorized decompression?
Eligibility depends on symptoms, examination, medical history, contraindications, treatments already tried, and sometimes imaging. It cannot be confirmed by a questionnaire or an image alone. An emergency, progressive weakness, or unstable pathology excludes a current clinical trial.
Can motorized decompression prevent me from needing surgery?
No guarantee is possible. It should not be presented as a surefire way to avoid surgery and never replaces a recommended surgical opinion. In a non-urgent and selected situation, it may only be discussed as a cautious conservative trial.
What should I bring to a TAGMED assessment?
Bring your MRI reports or other tests, the list of medications, the timeline of symptoms, and a summary of treatments with their duration and effects. Also note the walking distance, sitting time, sleep, work, and any observed weakness.
Sources and clinical references
- Health Insurance — Sciatica: how to relieve it and when to consult? (updated March 20, 2026).
- Health Insurance — Medical consultation and treatment for sciatica (updated March 20, 2026).
- NICE NG59 — Low back pain and sciatica in over 16s: assessment and management.
- Choosing Wisely Canada — Radiology recommendations: imaging of the lower back.
- INESSS — Relevance of spinal imaging for low back pain, 2024.
- Vanti et al. — Mechanical traction for lumbar radiculopathy: systematic review and meta-analysis, Physical Therapy, 2021.
Your sciatica persists and you want to clarify the next step?
If your situation is not urgent, an evaluation can help document the course, function, previously tried treatments, and elements that justify a medical referral. TAGMED Clinic can discuss a conservative approach when appropriate, without guarantees and without delaying necessary medical or surgical advice.
Dr. Sylvain Desforges, B.Sc., D.O., N.D., osteopath
Editorial information, sources and limitations
This content is intended to inform patients about sciatica, possible causes, warning signs, and care options. It does not replace an individualized assessment.
Reference sources
References are selected according to the subject of the page: guidelines, systematic reviews, then institutional resources.
- NICE NG59 – Low back pain and sciatica in over 16s — National guideline
- HAS – Management of patients with common low back pain — French national guideline
- Cochrane – Corticosteroid injections for treatment of sciatica — Systematic review
- NCBI Bookshelf – Sciatica — Clinical institutional resource
Complementary resources from the TAGMED network
These internal resources complement the clinical information and thematic linking. They do not replace national guidelines or systematic reviews.
Editorial note on decompression
Clinical resource from the TAGMED network; it does not replace national guidelines. Some guidelines use the term “traction” and recommend caution for low back pain with or without sciatica. Any decompression option should therefore be presented as an individualized clinical approach, with limitations, indications, and contraindications clearly explained.
Editorial note on imaging
Imaging is mainly considered when the presentation is complicated, prolonged, or likely to change management. Routine imaging is generally not necessary for every simple and recent sciatica-like pain presentation.
Limitations of this information
The information on this page is general. It does not constitute a diagnosis, prescription, or guarantee of results. Pain radiating into the leg may have several causes; assessment should consider clinical history, examination findings, symptom progression, and, when appropriate, complementary tests.
When to seek urgent medical care
Seek urgent medical care if you experience loss of bladder or bowel control, saddle anesthesia, major or progressive leg weakness, unexplained fever, pain after significant trauma, or severe pain that rapidly worsens.
