Laryngotracheoplasty Using the Medpor Implant: An Animal Model
Bibliographic record
Abstract
OBJECTIVE: The Medpor implant (Porex Surgical, College Park, GA) is a porous polyethylene that has been used safely in areas in the head and neck. Medpor allows the in-growth of capillaries and soft tissue and reduces the risk of infection and extrusion. This study was undertaken to evaluate the use of the Medpor implant in laryngotracheal reconstruction and to compare epithelialization of the trachea following two different methods at various intervals. METHODS: Eight beagles were divided into two groups. The first group underwent laryngotracheoplasty using the Medpor implant only, whereas the second group had the Medpor implant lined with a strap muscle flap. One animal from each group was sacrificed at 5-, 7-, 9-, and 12-month intervals. The degree of stenosis, inflammation, and epithelialization were compared. RESULTS: The Medpor implant can safely be used to reconstruct the trachea in this animal model. There is less stenosis and better epithelialization when the Medpor implant is lined with a strap muscle flap. CONCLUSION: The Medpor implant can safely be used in laryngotracheal reconstruction in beagles.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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".