Endoscopic Endonasal Approach to the Odontoid and Craniocervical Junction
Bibliographic record
Abstract
Background: Endoscopic endonasal approaches (EEAs) have been applied for skull base pathologies from the christa galli to the clivus. This approach also provides a natural corridor to the craniocervical junction and odontoid process. Objectives: To evaluate the surgical techniques, challenges, advantages and limitations of EEA for craniocervical pathologies. Methods: We present the endoscopic endonasal surgical technique for accessing the odontoid process and craniocervical junction. We present the advantages such as avoidance of oral mucosal transgression with its associated increased infection risk and potential swallowing delay and worsening. The caudal limits are discussed as well as methods for predicting them radiographically with the nasopalatal line. Finally, outcomes are presented to further examine the advantages and disadvantages of the transnasal approach. Conclusions: The ventral craniocervical junction and odontoid process can be addressed safely and effectively via EEA, without the attendant swallowing issues created by transoral approaches.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.001 | 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 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".