Sternal Bone Biopsy in Standing Horses
Bibliographic record
Abstract
OBJECTIVE: To develop a technique for sternal bone biopsy in standing horses. STUDY DESIGN: Experimental study. ANIMALS: Five adult horses. METHODS: Horses were restrained in a standing stocks and sedated. The sternal biopsy site, identified by ultrasonographic examination, was clipped and prepared for aseptic surgery and infiltrated with local anesthetic. An electric bone biopsy drill (Osteocore; Institut Straumann AG, CH-4437, Waldenburg, Switzerland)), which yielded 4-mm-diameter bone specimens, was used to obtain sternal biopsies through a small skin incision. Sections (7 microm) of the bone specimens were stained with toluidine blue and Goldner's green trichrome and observed microscopically to determine suitability for histological and histomorphometric evaluation. RESULTS: The most suitable sternal biopsy site was at the 4th or 5th sternebra. The surgical procedure was easy to perform and well tolerated by the horses, and adequate samples were obtained on the first attempt. The only complications were incisional edema in all horses and wound drainage in 1 horse. CONCLUSIONS: Sternal bone biopsy may be successfully performed in standing horses, and the technique described in this report yields architecturally intact bone specimens. CLINICAL RELEVANCE: The sternum is an accessible site for cancellous bone biopsy specimens in standing horses.
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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 | 0.002 | 0.000 |
| 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 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.019 | 0.002 |
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; both teacher heads agree on what is shown here.
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".