Septoplasty retards midfacial growth in a rabbit model
Bibliographic record
Abstract
OBJECTIVES/HYPOTHESIS: Septoplasty in the prepubertal age group is a controversial operation because of concerns regarding retardation of subsequent midfacial growth. This study uses a validated rabbit snout model to determine if septoplasty results in midfacial growth retardation, and if the retardation can be averted by replacing resected cartilage with a porous polyethylene implant. STUDY DESIGN: Prospective controlled animal study. METHODS: Sixteen 9-week-old New Zealand white rabbits were divided into four groups: two control and two experimental. The experimental groups both underwent conservative submucoperichondrial surgical excision of a portion of their septum, leaving a generous dorsal and caudal septal strut for nasal support similar to what would be done clinically in humans. One of the experimental groups had replacement of the resected area by a rigid porous polyethylene graft, and in the other experimental group the resected area was left empty. Cephalometric measurements were performed on radiographs taken at the time of implantation, and at sacrifice when the rabbits were mature at 24 weeks of age. RESULTS: There were significant disturbances in snout growth between experimental and control groups, and no significant differences between the two experimental groups or between the two control groups. CONCLUSIONS: These data demonstrate midfacial growth retardation after conservative septoplasty in young rabbits, and that this retardation could not be averted by replacing the resected cartilage with a porous polyethylene graft. These data are in agreement with human studies.
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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 | 0.001 |
| 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".