Central Cord Syndrome After Total Hip Arthroplasty
Bibliographic record
Abstract
In Brief Study Design. Case report. Objective. To present a patient with central cord syndrome injury after total hip arthroplasty performed under general endotracheal anesthesia. Summary of Background Data. Central cord syndrome, a common injury usually sustained as a result of an extension injury to the cervical spine, often occurs in geriatric patients with underlying spondylotic changes. The injury results in weakness and sensory changes, which are more pronounced in the upper than in the lower extremities. Patients with this syndrome experience variable return of function, but some degree of residual deficit and spasticity is likely. Methods. The medical record, including the intraoperative anesthesia records, operative notes, progress notes, discharge summary, clinic notes, and radiology studies and reports, was reviewed. Results. The patient developed signs of central cord syndrome after total hip arthroplasty. Despite nonoperative intervention, including physiotherapy, the patient’s upper and lower extremity weakness continued. Magnetic resonance imaging revealed evidence of cervical cord compression, and the patient underwent a cervical laminectomy, which produced mild improvement in his symptoms. Conclusions. To avoid life-altering complications, it is important to evaluate the cervical spine (especially in the elderly), avoid neck extension during intubation, and use careful airway management in patients with suspected stenosis/spondylosis. This is the first documented case of central cord syndrome after elective intubation. Based on this experience, and to avoid life-altering complications, the importance of evaluating the cervical spine (especially in the elderly), avoiding neck extension during intubation, and using careful airway management in patients with suspected stenosis/spondylosis is emphasized.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".