Prevalence of radiographic changes in yearling and 2‐year‐old Quarter Horses intended for cutting
Why this work is in the frame
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Bibliographic record
Abstract
REASONS FOR PERFORMING STUDY: There have been many studies that document radiographic findings in young Thoroughbred and Standardbred horses. No such studies have been performed in Quarter Horses. OBJECTIVE: To describe the prevalence of radiographic changes in the stifles, tarsi, carpi and fetlocks of young Quarter Horses intended for cutting. METHODS: Radiographs of yearling and 2-year-old Quarter Horses were obtained from a radiograph repository and a private farm. The carpi, tarsi, fetlocks and stifles were evaluated and radiographic changes categorised by type and location. The frequency of changes was calculated and comparisons were made between the 2 age groups. RESULTS: Of 458 included horses, 408 (89.1%) had radiographic changes, most of which were in the tarsi (304, 69.4%) followed by the stifles (202, 44.5%), hind fetlocks (155 of 355, 43.7%), fore fetlocks (131 of 361, 36.3%) and carpi (27 of 342, 7.9%). Of the horses with stifle changes, 188 (93.1%) were in the medial femoral condyle (MFC). There was a significant difference between the age groups for changes on the distal intermediate ridge of the tibia (DIRT), hindlimb middle phalanx (P2) osteophytes and proximal tibial osteophytes. CONCLUSIONS: There is a high prevalence of radiographic changes in presale survey radiographs, especially in the stifles and tarsi, of young Quarter Horses intended for cutting. POTENTIAL RELEVANCE: Veterinarians examining presale radiographs at cutting horse sales should expect a high prevalence of radiographic changes in this population of horses. Work to determine the clinical relevance of these radiographic changes is currently ongoing.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 it