Epidural Space Cervical Spine: Review of Traumatic and Non-Traumatic Epidural Pathologies
Bibliographic record
Abstract
The spinal epidural space located between the dura matter and the vertebral bodies can be affected by various pathologies. Understanding the radiological anatomy and clinical relevance of this space is of crucial importance for diagnostic and interventional therapeutic purposes. The cervical epidural space is particularly important due to its proximity to the cervical spinal cord and exiting nerve roots, where early detection of pathologies can prevent catastrophic neurological complications. In this concise review, we highlight the anatomy of the cervical epidural space and its boundaries and content as well as normal variants that mimic pathology on imaging. We discuss common etiologies that affect this space including traumatic and non-traumatic causes and their radiological appearance. Furthermore, the utility of computed tomography (CT) and magnetic resonance imaging (MRI) will be highlighted. Among the most common diseases affecting the cervical epidural space anteriorly is herniated discs and posteriorly facet degenerative changes. Infections and neoplastic processes integral to the cervical epidural space will be discussed in detail.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.004 | 0.004 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".