A Rare Pediatric Case of Anterior Radial Head Dislocation Associated With Volar Annular Ligament Avulsion Fracture
Bibliographic record
Abstract
An 11-year-old girl sustained an irreducible anterior radial head dislocation associated with a Salter-Harris type II proximal radial physeal injury and a volar annular ligament avulsion fracture after falling on an outstretched hand. Closed reduction was unsuccessful. During open reduction, the annular ligament was found interposed within the radiocapitellar joint, avulsed with a small bony fragment from the volar aspect of the radial notch. After ligament release, the radial head remained unstable, requiring anatomical repair using a pullout suture technique. At 1-year follow-up, the patient exhibited excellent functional recovery and a Mayo Elbow Performance Score of 100. Volar annular ligament avulsion fractures are exceedingly rare and may contribute to irreducibility in pediatric anterior radial head dislocations. Recognition of this interposition pattern is essential for planning surgical management. Anatomical repair through pullout technique can restore joint stability and function.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.004 | 0.003 |
| Insufficient payload (model declined to judge) | 0.003 | 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".