Hydatid disease of the distal humerus treated with wide resection and reconstruction with endoprosthesis
Bibliographic record
Abstract
A man in his 40s from a rural area presented with progressive pain and functional limitation of the right arm without trauma. Imaging revealed an aggressive lytic lesion with pathological fracture of the distal humerus. Staging studies excluded other lesions. Percutaneous biopsy confirmed osseous hydatid disease. Preoperative albendazole was administered, followed by wide en bloc resection of a 15 cm humeral segment with preservation of neurovascular structures. Reconstruction was achieved using a modular distal humerus endoprosthesis. Postoperative albendazole continued for 6 weeks. At 12 months, the patient was disease-free, with a painless range of motion from 0° to 120°, full independence in daily activities and a Toronto Extremity Salvage Score of 75. This case demonstrates the importance of considering hydatid disease in the differential diagnosis of lytic bone lesions in endemic areas and supports limb-sparing reconstruction as a viable alternative.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".