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Degenerative disc disease — master index¶
Last curated: 2026-10-28 · status: sweeps of 2026-09-30, 2026-10-14, 2026-10-21 and 2026-10-28 pending independent audit
The condition in five sentences. Degenerative disc disease (DDD) describes age-, inheritance- and exposure-associated intervertebral-disc structural change, but the label is not itself a pain diagnosis because degeneration is common in asymptomatic adults (Brinjikji 2015, PMID 25430861). Disc findings are more prevalent in people with low-back pain than controls, yet association does not identify a painful level or establish causality (Brinjikji 2015, PMID 26359154). Genetics, endplate transport, smoking, metabolic factors, matrix loss, inflammation, senescence and altered mechanics interact, replacing a simple “wear and tear” model (Battié 2009, PMID 19111259; Urban 2007, PMID 17260404; Mohd Isa 2022, PMID 36613651). Initial care for nonspecific or suspected disc-associated low-back pain is education and active nonoperative management; fusion, disc replacement, basivertebral ablation and intradiscal therapies apply only to selected phenotypes with very different evidence maturity (Qaseem 2017, PMID 28192789; Fischgrund 2018, PMID 29423885; Furunes 2018, PMID 29794581). Its deliberate sibling is spinal stenosis: degeneration can contribute to stenosis, but radiographic disc change, discogenic pain and neural compression are not interchangeable.
Start here: Overview · Research frontier: Open questions · Growth history: Curation log
Build at a glance¶
| Artifact | Completed scope |
|---|---|
| Canonical wiki pages | 18/18; 12 curated, 6 updated pages draft pending independent audit |
| Unique PubMed records in bibliography | 369 (348 previously audited; 21 live-verified sweep additions) |
| Live-verified ClinicalTrials.gov records tracked | 54 |
| Landmark evidence notes | 6 |
| Guideline/policy documents tracked | 19, plus one companion summary and one reporting standard |
| Quantitative statistics rows | 174 data rows |
| Patient-voice layer | 4 files; 12 verified organization/resource entries |
| Open questions | 32 (20 Tier 1; 12 Tier 2) |
| Unconnected-dot hypotheses | 20 |
Reading paths¶
| Need | Suggested path |
|---|---|
| Understand what DDD does—and does not—mean | Overview → Nomenclature and diagnostic validity → Imaging and grading |
| Understand biology and risk | Disc anatomy and biomechanics → Cellular and molecular degeneration → Genetics and environmental risk |
| Work through a clinical presentation | Discogenic pain and differential → Red flags and safety → Conservative treatment |
| Compare procedures and surgery | Injections and ablative procedures → Fusion and disc replacement → Outcomes and measurement |
| Assess emerging treatments | Regenerative and biologic therapy → Biomarkers → Clinical-trials landscape |
| See policy and lived-experience context | Guidelines → Patient experience and advocacy → Patient-voice themes |
Pages¶
| File | Scope | Status |
|---|---|---|
| overview.md | Nomenclature, imaging–pain gap, biology and treatment map | curated |
| nomenclature-and-diagnostic-validity.md | DDD label, discogenic pain, nonspecific back pain and coding | curated |
| epidemiology-and-natural-history.md | Age patterns, progression, symptoms and global low-back burden | curated |
| disc-anatomy-and-biomechanics.md | Nucleus, annulus, endplate, loading, nutrition and failure | curated |
| cellular-and-molecular-degeneration.md | Matrix loss, inflammation, senescence, oxidative stress and innervation | curated |
| genetics-and-environmental-risk.md | Twin evidence, variants, smoking, obesity, work and injury | curated |
| imaging-and-grading.md | MRI features, Pfirrmann, Modic change and asymptomatic findings | curated |
| discogenic-pain-and-differential.md | Phenotyping, referred/radicular pain, hip/SI and visceral mimics | curated |
| conservative-treatment.md | Education, exercise, rehabilitation, medicines and behavioral care | draft |
| injections-and-ablative-procedures.md | Intradiscal approaches, epidural use and basivertebral ablation | draft |
| fusion-and-disc-replacement.md | Indications, comparative trials, adjacent disease and reoperation | curated |
| regenerative-and-biologic-therapy.md | Cells, growth factors, hydrogels, gene therapy and trial quality | draft |
| outcomes-and-measurement.md | Pain, ODI, function, return to work and imaging endpoints | curated |
| guidelines.md | International recommendations, agreements and disagreements | draft |
| biomarkers.md | Inflammatory, imaging, biomechanical and molecular candidates | curated |
| clinical-trials-landscape.md | Rehabilitation, procedures, devices and regeneration trials | draft |
| patient-experience-and-advocacy.md | Diagnostic labeling, fear, work, access and patient priorities | draft |
| red-flags-and-safety-concerns.md | Cancer, infection, fracture, cauda equina, myelopathy and procedural risk | curated |
Literature layer¶
| Artifact | Contents |
|---|---|
| BIBLIOGRAPHY.md | Deduplicated bibliography of 369 PMIDs, including explicitly labeled literature-only additions |
| Landmark notes | Structured notes on asymptomatic imaging, Pfirrmann grading, twin evidence, STarT Back, BVN ablation and disc progenitor cells |
| Guideline registry | Nineteen guideline/policy documents plus a companion summary and a reporting standard, status, scope and disagreements |
| Statistics | Source-, year-, population- and method-qualified quantitative claims |
| Patient voice | Methods, themes, organizations, sources and geographic/selection limitations |
Curation state¶
The baseline condition was independently audited on 2026-08-30. The 2026-09-30 sweep updated four wiki pages, which are now draft pending the separate auditor; the other 14 retain their previous curated status. Ten PubMed records and one previously untracked trial were added, trial status/results were refreshed, and guideline, statistics, patient-resource and open-question layers were updated. New clinical claims were checked against live abstracts or registry records; the new acute guideline's recommendation-level extraction remains outstanding. No landmark deep note was warranted. See the log and sweep evidence for scope, queries and follow-ups.
The 2026-10-14 sweep (Claude) corrected the registry's stale NICE NG59 status: NG59 was last updated on 29 July 2026, when its psychological-therapy recommendations were withdrawn. It also added the 2026 Chinese multidisciplinary consensus, with recommendation wording verified from the full text, and a meta-analysis of 11 PRP RCTs that found no significant pooled benefit at very low certainty. Two trial registrations were added: the terminated VIA Disc NP registry and the recruiting Intracept real-world registry. Guidelines, injections, trials and regenerative pages are draft pending audit. See the log and sweep evidence.
The 2026-10-21 sweep added the previously missed Cochrane lumbar-support review and a broad sham-comparison systematic review to the bibliography for full-text appraisal and incorporated ISSLS VERTEBRA into the regenerative-trial reporting framework. All 51 tracked trial records were re-fetched; two previously registered studies, ABBA and CLARITY, were added. BackCare’s booklet landing page is now available. No new burden estimate or landmark note was warranted. See the log and sweep evidence; the two edited wiki pages remain draft.
The 2026-10-28 sweep added a DDD-specific preoperative coping/affect cohort (Rejner 2026, PMID 42941526; full text) and a PLoS Medicine cost-effectiveness systematic review of guideline-recommended LBP care (Mathieson 2026, PMID 42945153; full text). All 53 tracked trial records were re-fetched with no status or results change; NCT07895225 (PRP versus nucleus-pulposus graft, not yet recruiting) was added. No new society guideline or Cochrane DDD/LBP review was found in PubMed for this window. No landmark deep note was warranted. See the log and sweep evidence. Edited wiki pages are draft.