Hypothenar hammer syndrome: An underdiagnosed cause in workers exposed to hand-arm vibration
Bibliographic record
Abstract
The literature reporting structural lesions such as HHS among HAVS patients is reported and and cases of thrombosis of the radial and cubital arteries that could account for the poor prognosis of HAVS patients are presented. The preliminary literature review on HHS found few studies on I-IHS. mainly case reports and a few small cohort studies. Thompson et al. (2006), Noël (1998) and Kaji et al. (1993) reported cases of HHS and Youakim (2006) reported one case of thenar hammer syndrome. Conn et al. (1970) first described HHS as a rare disease and found that among 1300 individuals presenting with hand ischemia, the prevalence of HHS is 1.6% and is reported as high as 7% in 333 vibration-exposed workers. Marie et al., 2007 and Kaji et al., 1993 found that the mean duration of occupational exposure to repetitive palmar trauma at HHS diagnosis is 21 years. HAVS and HHS can produce similar symptoms however, the presence of hand cyanosis and pain and ulcers and necrosis with or without Raynaud's phenomenon can lead to suspected HHS.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".