The Experimental Study and Clinical Application of Effect of the Vertical Stress on the Pelvic Ring
Bibliographic record
Abstract
Objective: Our aim was to investigate the biomechanic characteristic of the pelvic ring under the vertical stress by the 3-dimensional photoelastics. Methods: Eight photoelastic pelvic models (16 hip joints) were made with light-sensatory material with hypersensitivity E-51 epoxy resin. The various vertical loading was put on the pelvic models, while the froze stress was performed. We analyzed the distribution and change of pelvic model stresses. Results: With the standing condition of double legs and vertical stresses, the streaks on the pictures of identical color-string were centralized on the sacroiliac joint and the acetabulum. The vertical stresses on the pelvis were transmitted through the sacroilic joint, the arch line of ilium, the dome of acetabulum, and the sacrum. When the vertical stresses on the pelvis increased, the stresses increased significantly on the sacroilic joint, arch line of ilium, the dome of acetabulum, and the sacrum ( P 0.05 ), but did not change obviously on the pubic superioris ( P 0.05). Conclusion: With the vertical stresses, the distribution of pelvic stresses is complicated. With the vertical stresses, the fractures occurred easily on the sacroilic joint, arch line of ilium, the dome of acetabulum, and the sacrum. The pubic superioris can transmit the vertical stresses. It is necessary to treat vertically unstable pelvic fractures with replacement and internal fixed the injured pelvic ring.
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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".