Intraoperative reduction and internal fixation for atlanto-axial dislocation
Bibliographic record
Abstract
Atlanto-axial complex is the most important functional unit of the cervical spine. Atlanto-axial instability or dislocation, one of the most serious pathologies in spinal surgery, is often managed by posterior atlantoaxial fixation and fusion. Several posterior fixation techniques have been used to stabilize the atlanto-axial complex, including wire/cable-bone fixation, Halifax clamps, transarticular screw fixation, screw-plate fixation and screw-rod fixation. For atlanto-axial dislocation that cannot be reduced with skull traction before operation, intraoperative reduction is often needed. Current intraoperative reduction techniques can be classified into tran-soropharyngeal surgical release followed by posterior reduction and fixation, transoropharyngeal reduction and fixation, and posterior reduction and fixation using screw-rod system according to approaches. Furthermore, posterior reduction can be performed using elevating-pull, leverages, and cantilever techniques. This study re-views the intraoperative reduction and fixation techniques mentioned above. Key words: Atlas; Axis; Dislocation; Reduction; Internal fixation
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| 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".