Wide Resection of Sacral Chordoma Including Gluteus Maximus Muscles via Posterior Approach
Bibliographic record
Abstract
Malign sacral tumors are treated by total sacrectomy and wide resection of soft tissue to reduce local recurrence and for cure. A 78-year-old male presented with low back pain and tenesmus. MRI showed a large tumor in sacrum and the biopsy result showed it was chordoma. “S” shaped incision was applied between L3 and Co2 and chordoma was taken out and gluteal maximus muscles were totally excised. General surgery opened the colostomy and plastic surgery was applied for the flap reconstruction after wound dehiscence. Total sacrectomy is a complicated and difficult surgery because of complex pelvic anatomy. Only posterior approach provides to come through the sacral tumors without anterior approach “laparotomy”. J Med Cases. 2016;7(1):15-17 doi: https://doi.org/10.14740/jmc2254w
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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 | 0.001 |
| 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 | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".