Patient guide · Spinal diagnostics
Discogram (discography): what it is, and what has quietly replaced it.
A provocative disc injection to identify a symptomatic disc responsible for axial back pain. Once common, now used in narrow, pre-fusion circumstances — and largely replaced by modern MRI. Here is the honest picture.
Why patients choose us
- 01
A consultant, not a room booking
Discography is done by a consultant interventional radiologist or spinal surgeon — not a trainee, not a service line.
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Honest about the evidence
Discogram has fallen out of favour in the UK for good reasons. We say so before you sign, and we set out the modern alternatives first.
- 03
Independent, and free
We are paid by no clinic, so the recommendation is impartial and costs you nothing.
Indicative pricing
What a private discogram costs in the UK.
Indicative ranges across our partner clinics. Almost every patient we speak to should have an MRI first — that price is on the table for a reason.
In short
Single-level lumbar discogram in our network: £1,800–£3,200, home the same day.
| Procedure | Indicative range | Typical duration | Turnaround |
|---|---|---|---|
| Single-level lumbar discogram (fluoroscopy) | £1,800–£3,200 | 45–60 min | Same day |
| Two- or three-level lumbar discogram | £2,400–£4,200 | 60–90 min | Same day |
| CT-guided discogram | £2,600–£4,500 | 60–90 min | Same day |
| Post-discogram CT (analytical CT-discography) | £450–£850 | 15 min | Same day |
| Spinal surgeon consultation (pre) | £280–£450 | 45 min | Same visit |
| MRI lumbar spine (recommended first) | £350–£600 | 30 min | 24–48 h report |
Prices vary by clinic, by whether fluoroscopy or CT guidance is used, by how many levels are injected, and by whether a post-discogram CT is added. We come back with a firm quote within one working day — often, with a case for not doing it at all.
The problem
The right test, in the right order, for the right question.
Discography is the most common example of a spinal test that gets requested too early, too often, and in patients where MRI would answer the question just as well. We put the order back in the right order.
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MRI first, always
Modern MRI with STIR and Modic-change grading is the correct starting point — and usually the finishing point too.
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Fusion isn’t the only answer
A discogram only makes sense if surgery is genuinely on the table. Half the time, a second surgical opinion removes the need entirely.
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A blunt tool, honestly used
Where a discogram is still done, it is done properly: low-pressure, pressure-controlled, antibiotic-covered, and interpreted with humility.
The journey
MRI, conservative trial, surgical consideration — then, if it still isn’t clear, a discogram.
The order matters more than the test. Get the order right and most patients never need a discogram at all.
Phase 1 · Before the discogram
MRI, physio, surgical review
Phase 2 · On the day
Fluoro or CT, ~1 hour
Phase 3 · After
Antibiotic cover, surgical decision
- 01
Before
A proper MRI first
A high-resolution T2 with STIR sequence — often with Modic-change grading — is the correct starting point. Most patients need nothing beyond this.
- 02
Before
A trial of conservative treatment
Physiotherapy, structured exercise, targeted injections and time. A discogram before this has been tried is almost never appropriate.
- 03
Before
Surgical consideration
A spinal surgeon reviews whether fusion or disc replacement is on the table at all. If it isn’t, discography adds nothing.
- 04
On the day
The discogram, if still unclear
Prone or oblique on the fluoroscopy or CT table, sterile prep, extra-pedicular 22G needle into the target disc.
- 05
On the day
Provocation and pressure recording
Low-pressure contrast injection. Your pain response is scored on a 10-point scale and opening pressure recorded — the aim is a concordant response.
- 06
After
Antibiotic cover and observation
Intradiscal or intravenous antibiotics to reduce discitis risk. A short observation period, then home the same day.
- 07
After
Decision, not a diagnosis
The result is one input into a surgical decision — never a diagnosis on its own. We help you talk it through with the surgeon.
Typical from first enquiry to a considered decision: 4–8 weeks. Often, without ever needing the discogram itself.
When it helps
When a discogram is — and isn’t — the right step.
The narrow set of situations where the test earns its place, and the far commoner situations where it doesn’t.
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Chronic axial low back pain
Pain in the back itself, not radiating down the leg, for more than six months despite proper conservative care.
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Equivocal MRI findings
Multiple degenerate discs on MRI and it isn’t clear which — if any — is the pain generator.
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Pre-fusion decision
A spinal surgeon is considering single- or two-level lumbar fusion and wants one final input before committing.
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Adjacent-segment question
Above or below a previous fusion, where MRI cannot separate a symptomatic disc from a bystander.
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Failed conservative treatment
Physiotherapy, medication, epidurals and facet blocks have all been tried and back pain persists.
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Not for radicular (leg) pain
Sciatica or nerve-root pain is a different problem — discogram does not diagnose it and should not be used for it.
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Not for a normal MRI
A discogram in a patient with a clean MRI is very likely to be a false positive. It should not be requested.
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Red flag: no conservative trial yet
Discography before a proper trial of physio, exercise and time is almost never the right next step.
Alternatives
Discogram is rarely the first — or best — answer.
What actually gets used in modern UK spinal practice, and why most axial back pain never needs a needle in a disc.
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MRI-only workup
High-resolution T2 with STIR, plus Modic-change grading. The correct first — and usually final — investigation for axial back pain.
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Modic-change grading on MRI
A structured read of vertebral endplate changes on MRI. Non-invasive, reproducible, and increasingly replacing discography.
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SPECT-CT of the spine
Functional imaging that highlights metabolically active pain generators — useful for facet joints and pars defects.
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Diagnostic facet joint blocks
Small anaesthetic injections into the facet joints — often a better diagnostic step than discography for axial pain.
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Diagnostic sacroiliac joint block
Ruling the SI joint in or out — a common and under-diagnosed source of “back” pain that discogram will never show.
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Provocative lumbar discogram
Kept honestly on the list: the procedure itself, its role narrow, its evidence contested, its use in the UK declining.
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CT-guided discography
Where anatomy is difficult or a post-discogram CT is planned in the same sitting. Same limitations as fluoroscopic discography.
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Second surgical opinion
Often the single most useful step. A second spinal surgeon may make the decision without needing any provocative test.
Our vetted UK network
A small panel of spinal specialists, we picked them.
Consultant interventional radiologists and spinal surgeons across London and the major UK centres. Not listed publicly — introductions are made privately, once we understand your case.
Selection criteria
How we choose every specialist in our network.
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Consultant interventional radiologists or spinal surgeons only
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Refuses to perform discography before a proper conservative trial
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Uses low-pressure, pressure-controlled technique to reduce false positives
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Antibiotic prophylaxis and strict sterile technique for every case
Safety and red flags
The risks worth knowing — honestly.
Discography is not a benign test. The three risks to weigh most carefully are post-procedure discitis, accelerated disc degeneration, and a false-positive result leading to unnecessary fusion.
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Post-discography discitis
Rare but devastating: disc-space infection presenting with severe new pain and rising CRP over the following days. Any such change is an emergency.
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Accelerated disc degeneration
Long-term studies suggest injected discs degenerate faster than uninjected control discs — this is a real, evidence-based concern.
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High false-positive rate
Asymptomatic volunteers report pain on injection at concerning rates. A “positive” discogram alone is not enough to justify surgery.
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Transient pain flare
A short-lived flare in your usual pain over 24–72 hours is common and usually settles with simple painkillers.
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Contrast reaction
Uncommon. Any history of contrast allergy must be flagged before the procedure — an alternative agent or premedication is used.
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Epidural puncture or leak
The needle can inadvertently enter the epidural space. Usually harmless, occasionally causes a short-lived postural headache.
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Nerve root injury
A recognised, rare complication of any spinal needle procedure. Careful fluoroscopic or CT guidance reduces the risk.
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Disc rupture on injection
Excessive pressure can rupture an already-degenerate disc. Low-pressure, pressure-controlled technique is the safeguard.
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Red flags after the procedure
New severe pain, fever, spreading numbness, weakness or loss of bladder or bowel control — go straight to A&E, do not wait for the clinic.
Reading your procedure note
Your discogram report in four parts. Read the last one first.
Whichever centre performed it, the report the radiologist or surgeon sends you keeps to the same shape.
A quiet reminder
A “positive” discogram is not a diagnosis. It is one input into a surgical decision.
If you would like us to talk you through the note before your surgical review, just ask.
- 01 Header
Indication and consent
Why the discogram was done, which levels were targeted, and the informed-consent discussion about false positives and discitis.
- 02 Technique
Approach, needle and antibiotic cover
Fluoroscopy or CT guidance, extra-pedicular 22G approach, sterile prep, and the antibiotic regime used.
- 03 Findings
Pain response and opening pressure
For each disc: the pain score out of 10, whether it was concordant with your usual pain, opening pressure and volume injected.
- 04 Impression
Concordance, not diagnosis
Read this first: which disc — if any — reproduced your typical pain, and how this should be weighed alongside MRI and clinical findings.
Recognised by major UK insurers
Cover for discography varies by insurer and by indication — most fund it only where a spinal surgeon has requested it as part of a pre-fusion workup. We confirm cover before booking.
Frequently asked
Everything patients ask us about discogram.
Straight answers on what the test does, why the UK has moved on from it, and what to do instead.
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What actually is a discogram?
A provocative diagnostic injection. Contrast is injected into one or more intervertebral discs under fluoroscopy or CT guidance, and your pain response is recorded. If injecting the disc reproduces your usual pain — a “concordant response” — that disc is considered a likely pain generator.
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Why has discogram fallen out of favour in the UK?
Three reasons. There is a high false-positive rate in asymptomatic volunteers. There is credible evidence that injected discs degenerate faster than uninjected discs. And modern MRI — high-resolution T2 with STIR and Modic-change grading — has largely replaced it for identifying a symptomatic disc.
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When is a discogram still done?
Some UK spinal surgeons still use it in narrow circumstances — most often before considering single- or two-level lumbar fusion, where MRI is equivocal and the decision genuinely turns on which disc is the pain generator. It should never be a first-line test.
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Is a discogram painful?
The point of it is to provoke pain — that is how the test works. Local anaesthetic is used for the skin and track, but the disc itself is deliberately not numbed, because the pain response is the finding.
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What are the risks?
The most serious is post-discography discitis — a rare but severe infection of the disc space. Others include accelerated disc degeneration, a transient pain flare, contrast reaction, epidural puncture, nerve-root injury and, on excessive pressure, disc rupture.
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What are the alternatives?
A proper MRI (with STIR and Modic grading) is the correct first step and usually the last. SPECT-CT, facet joint blocks and sacroiliac joint blocks address other pain generators. For most patients, a discogram adds no useful information beyond these.
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