The outer wall of an intervertebral disc is made of concentric fibrous rings called the annulus fibrosus. An annular tear — the radiology report may say fissure, or high-intensity zone — is a defect in that wall.
What makes it clinically important is where the nerve endings are. The outer third of the annulus is innervated; the inner disc is not. A tear that reaches the outer annulus therefore exposes nerve endings to the chemical contents of the nucleus, and inflammatory mediators from a degenerating disc can sensitize those endings without anything pressing on a nerve root at all.
That is the whole distinction between this and a herniated disc. A herniation compresses a nerve root and hurts down the leg. A tear that has not herniated hurts in the back — sometimes severely — while the scan looks close to unremarkable to a reader who is scanning for compression.
Annular fissures are common findings in people with no symptoms. According to PubMed, a systematic review of imaging in asymptomatic individuals found annular fissures in 19 percent of 20-year-olds rising to 29 percent of 80-year-olds (Brinjikji W, et al. AJNR Am J Neuroradiol. 2015;36(4):811-6. DOI).
At the same time, the disc is a genuine and substantial source of chronic back pain in people who do hurt. According to PubMed, a systematic review of controlled evaluations reported that lumbar intervertebral discs are the source of chronic back pain without disc herniation in 26 to 39 percent of patients, and in 16 to 53 percent of patients with neck pain (Manchikanti L, et al. An Update of the Systematic Appraisal of the Accuracy and Utility of Discography in Chronic Spinal Pain. Pain Physician. 2018;21(2):91-110. PubMed — no DOI assigned).
Both of those things are true simultaneously, and holding both is the whole discipline of this diagnosis. A tear seen on a film proves nothing by itself. The disc being a major cause of back pain is nevertheless well supported. What separates the two is testing.
Annular tears accumulate with the ordinary loading of adult life, and specific things accelerate them: repeated bending and lifting, particularly loaded flexion with rotation; sustained sitting, which raises intradiscal pressure; vibration exposure, which is why long-haul drivers and heavy equipment operators are over-represented; a single significant flexion-rotation injury; and smoking, which impairs the marginal blood supply the disc depends on.
The disc is the largest structure in the body without its own direct blood supply. It is fed by diffusion through the vertebral endplates, which means anything that degrades microvascular function degrades disc nutrition. Insulin resistance, visceral adiposity, high inflammatory load and smoking all do that. This is one of the clearest places where metabolic medicine and spine medicine are the same subject, and this practice treats both — see lifestyle medicine, medical weight management, and our post on microvascular dysfunction and chronic pain.
Examination and history first. The sitting-worse, standing-better pattern, the response to repeated movements, and the absence of a nerve-root signature narrow the field considerably before imaging.
Imaging, read for what it can actually show. MRI shows disc hydration, height and the presence of a fissure or high-intensity zone. It cannot show whether that fissure hurts. Given that fissures appear in roughly a fifth to a third of people with no symptoms, that limitation is not a technicality. Our post on back pain with a normal-looking MRI covers the version of this that frustrates patients most.
Excluding the alternatives with blocks. Before concluding that a disc is the source, the structures that mimic it get tested — the facet joints by medial branch block, the sacroiliac joint by intra-articular block. Discogenic pain is, in practice, partly a diagnosis of exclusion, and the exclusions have to be done rather than assumed.
Provocation discography, where the answer will change the plan. A discogram pressurizes each candidate disc under image guidance and asks whether it reproduces your familiar pain, while adjacent discs serve as controls. It is the one test that asks the disc directly.
This is a genuinely contested test and we would rather set out the argument than pick a side and hide the rest.
The case against: the concern that discography produces too many false positives has been raised seriously and repeatedly, and a broad review of prognostic tests used to select patients for lumbar fusion concluded that the accuracy of all such tests was low and that best evidence did not support using any of them in routine clinical practice (Willems P. Acta Orthop Suppl. 2013;84(349):1-35. DOI).
The case for: according to PubMed, a systematic review and meta-analysis of discography in asymptomatic subjects found a pooled false-positive rate of 9.3 percent per patient and 6.0 percent per disc, with a specificity of 0.94 (95% CI 0.88–0.98), and found that chronic pain in itself did not impair a patient’s ability to distinguish painful from non-painful discs (Wolfer LR, Derby R, Lee JE, Lee SH. Pain Physician. 2008;11(4):513-38. PubMed — no DOI assigned).
The reconciliation is in the subgroups, and it is the most clinically useful part of that analysis. False-positive rates were not uniform: 3.0 percent per patient in asymptomatic subjects without confounders, 12.5 percent in those with iliac crest pain, 15 percent after previous discectomy, and 50 percent in patients with somatization disorder. The test’s reliability depends heavily on who is being tested and on technique — low-pressure positive criteria produced low false-positive rates.
What follows is not that discography is good or bad. It is that it is a test with real limits that has to be applied to the right patient, with attention to pressure criteria and control discs, and interpreted alongside everything else — never as a standalone verdict, and never as the automatic gateway to a fusion. The 2018 review graded the strength of evidence for lumbar provocation discography as Level III, weaker for cervical and effectively absent for thoracic. We would rather tell you that than imply a certainty the literature does not contain.
Practical note: a discogram is one of the small number of procedures here performed with mild sedation, which means you must arrange for someone to drive you home. That is different from the injection procedures on this site, which use no sedation and after which patients drive themselves. The discogram page covers what the day involves.
Conservative care, and it does more here than patients expect. Directional preference work, load management, and specifically addressing sitting posture and duration. Graded activity beats rest; deconditioning worsens discogenic pain reliably.
Metabolic and vascular drivers. Treated directly, for the nutritional reasons above. This is not a wellness add-on for a disc problem — it is aimed at the mechanism by which discs fail to heal.
Image-guided injections. Epidural steroid injections where inflammatory mediators from the disc have sensitized adjacent structures. Performed under local anesthetic with no sedation — awake, self-driving, back to normal activity including work within two to four hours.
Adhesiolysis where scarring is contributing. Epiduroplasty, also without sedation.
Neuromodulation where axial pain is severe, confirmed, and has not responded to the above — spinal cord stimulation, trialed before implant.
Surgery is not the routine answer for an annular tear. There is no operation that repairs a fissure in the annulus, and fusing a segment to eliminate motion at a torn disc is a large intervention with consequences at adjacent levels — undertaken, when it is undertaken, on the strength of tests whose predictive accuracy is itself contested, as the review cited above concluded.
That is a statement about this condition, not about this practice. Dr. Gurpreet Singh Padda, MD, MBA, MHP is a licensed physician and surgeon with surgical privileges, and surgery is performed here where it is indicated.
Surgery becomes the right conversation when the tear has progressed to a herniation compressing a nerve root — a different condition with much clearer surgical indications, covered on our herniated disc page — or when there is instability or a structural problem that an operation actually addresses. For isolated discogenic back pain, the sequence that serves patients is confirming the source, treating the drivers that prevent healing, and using the least invasive intervention that can answer the mechanism.
Deep back pain that is worse sitting, worse bending, and not explained by your MRI is a recognizable pattern, and it is testable rather than dismissible. We see patients from across St. Louis, Florissant, St. Charles and the Illinois Metro East. Call (314) 481-5000 or request an evaluation.
Because MRI is very good at showing compression and much less good at showing pain. A tear in the outer annulus exposes nerve endings to inflammatory chemistry from inside the disc, which can produce severe pain with almost nothing visible pressing on anything. A near-normal scan in a patient with disabling back pain is a reason to test differently, not a reason to doubt the patient. Read more: Back pain with a normal MRI.
Partially, and slowly. The annulus has a marginal blood supply and heals with scar rather than with original tissue, so the honest expectation is that symptoms settle substantially over months while the structural defect does not fully reverse. What most influences that trajectory is load management and the metabolic and vascular factors that govern how well any poorly perfused tissue repairs. Read more: Microvascular dysfunction and chronic pain.
Because seated flexion raises pressure inside the disc and loads the posterior annulus, which is where most tears are. Standing and walking unload it comparatively. That pattern is close to the reverse of facet joint pain, which is worse standing and arching — which is exactly why the question is worth asking rather than assuming. Read more: Facet joint pain explained.
It depends entirely on whether the answer would change the plan. It is a contested test: a meta-analysis in asymptomatic subjects found a pooled false-positive rate of 9.3 percent per patient with a specificity of 0.94, while a broad review of tests used to select fusion candidates concluded that the accuracy of all such tests is low. It is worth doing when a specific decision hinges on it, in a patient without the features that raise the false-positive rate, and it is not worth doing as a routine step. Read more: Provocative discography and discogenic back pain.
Yes — mild sedation, which means you must arrange for someone to drive you home. That distinguishes it from the injection procedures here, which use no sedation and after which patients drive themselves. We tell you which category your procedure falls into before anything is scheduled. Read more: What is a discogram?
No, though one can lead to the other. A tear is a defect in the disc wall that typically produces back pain through chemical irritation. A herniation is nucleus material pushing through that wall to sit against a nerve root, which produces leg or arm pain along one line. Back pain and leg pain from the same disc are different problems with different treatments. Read more: Sciatica: disc, piriformis or cluneal nerve?
No. Prolonged avoidance deconditions the muscles the spine depends on and reliably makes discogenic pain worse over time. What changes is technique and dosage — reducing loaded flexion with rotation, breaking up sustained sitting, and building capacity progressively rather than waiting for the pain to grant permission. Read more: Why back pain keeps coming back.
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