Simultaneous Fracture of Every Cervical Vertebra
Bibliographic record
Abstract
STUDY DESIGN: The case of a 14-year-old boy who sustained simultaneous fractures of every cervical vertebra in a high-energy snowmobile accident is reported. OBJECTIVE: To describe a case of multiple cervical spine fractures and their management. SUMMARY OF BACKGROUND DATA: Injuries from all-terrain vehicles and off-road vehicles, including snowmobiles, are increasing in severity and frequency. The reported case illustrates a result of high-impact loading in which the driver struck his head after being thrown from a snowmobile at high speed. METHODS: The 14-year-old boy in the reported case fractured C1-C7, but had no neurologic sequelae. RESULTS: The fractures were treated with a halo vest after traction and reduction of the displaced odontoid fracture. All the fractures healed with no residual cervical instability. CONCLUSIONS: This case report is the first to describe a patient of any age who sustained simultaneous fractures of every cervical vertebra. Treatment with a halo vest was successful in protecting the cervical spine until healing was complete.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.006 | 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".