Case Report: Palmaris Brevis Syndrome Resulting From Acute Wrist Hyperextension
Bibliographic record
Abstract
A 24-year-old, 19-week pregnant female presented to a community hospital emergency department following an acute hyperextension injury to the left wrist. The pertinent findings on the initial examination included pain, swelling of the ulnar aspect of her palm, and decreased, painful flexion of her small finger. The emergency room physician suspected a flexor tendon injury, and urgent referral to a tertiary level plastic surgery center was made. After plastic surgery evaluation, it was determined that her symptoms were related to the ulnar nerve opposed to an acute tendon injury. After ruling out common surgical pathologies, the diagnosis of palmaris brevis syndrome was provided. Palmaris brevis syndrome does not typically present acutely or post-trauma, and thus is not commonly observed by emergency physicians or acute care hand surgeons. This atypical presentation highlights that palmaris brevis syndrome should be considered in the differential diagnosis of new onset ulnar-sided hand pain.
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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 | 0.005 |
| Meta-epidemiology (narrow) | 0.003 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.004 | 0.002 |
| Scholarly communication | 0.003 | 0.003 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.008 | 0.005 |
| 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".