Clinical Symptoms in Lumbar Disc Herniations and Their Correlation to the Histological Composition of the Extruded Disc Material
Bibliographic record
Abstract
In Brief Study Design. Fifty-five consecutive patients undergoing microdiskectomy due to lumbar disc herniation were included in this clinical study over 12 months. Objectives. To investigate possible correlations between the histologic composition of the herniated disc fragments and pain, disability, clinical signs, and operative findings. Summary of Background Data. Previous studies have investigated the histologic composition of herniated lumbar disc fragments. Few publications, however, examined correlations with clinical data. Methods. Before treatment, patients were examined using a standardized clinical protocol; subjective disability and pain were assessed by the Oswestry Disability Questionnaire and the McGill Pain Questionnaire. The herniated disc fragments were examined semiquantitatively for the relative percentages of nucleus pulposus, anulus fibrosus, and cartilaginous endplate. Results. In patients less than 30 years of age, significantly higher percentages of nucleus pulposus were found than in the older group, whereas anulus fibrosus was found in significantly higher percentages in patients ≥30 years. Both higher percentages of cartilage and nucleus pulposus correlated with increased pain intensity values from the McGill Pain Questionnaire. Impaired reflexes before treatment occurred significantly more often in patients with ≥20% of cartilage in the herniated fragments. If nucleus pulposus was <30%, sensory impairment tended to be more severe before treatment. Conclusion. The histologic composition of the herniated disc fragments seems to affect pain and clinical symptoms. A clinical study including 55 consecutive patients undergoing surgery for lumbar disc herniations revealed significant correlations between the histologic composition of the herniated disc fragments and pain and reflex and sensory impairment before surgery. Patients were examined using a standardized clinical protocol and various instruments assessing pain and disability.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".