Fractures of the Clavicle: Which X-Ray Projection Provides the Greatest Accuracy in Determining Displacement of the Fragments?
Bibliographic record
Abstract
Recent studies favor surgical management of displaced clavicle fractures.Displacement is measured using anterior-posterior (AP) X-rays.Since displacement can occur in all three dimensions, however, standard methods of evaluation can be difficult and inaccurate.This study was conducted to determine the X-ray angle that provides the most accurate assessment.Nine CT scans of acute displaced clavicle fractures were analyzed with AmiraDev imaging software.3D measurements for degrees of shortening and fracture displacement of the fracture clavicle were taken.Using a segmentation and manipulation module, five digitally reconstructed radiographs (DRRs) mimicking AP X-rays were created for every CT, with each DDR differing slightly by projection angle.After comparison to the original CTs, all samples using an AP view with a 20° downward tilt yielded displacements closest to the 3D "gold standard" or true measurements.Therefore, it is suggested that using this projection would provide the most accurate indication of fracture displacement.
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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 | 0.003 | 0.008 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".