A Modified Technique for Harvesting Full-Thickness Iliac Crest Bone Graft
Bibliographic record
Abstract
STUDY DESIGN: A prospective follow-up study of patients undergoing anterior spinal decompression and bone graft with cortical iliac crest bone. OBJECTIVE: To describe a modified technique for harvesting cortical bone graft from the anterior iliac crest. SUMMARY OF BACKGROUND DATA: Cortical bone graft from the iliac crest frequently is used in various orthopedic and spinal procedures. The resulting defect in the iliac crest has been associated with many complications. METHODS: Twenty patients were included in this study. All had burst vertebral fracture requiring anterior spinal decompression and cortical bone grafting. The modified technique was used for harvesting the iliac crest bone graft in all patients. RESULTS: All patients were satisfied with the appearance of the iliac crest. None reported chronic pain at the graft site. None had fracture of the iliac wing, and none had symptoms related to the lateral femoral cutaneous nerve or herniation of pelvic contents through the bony defect in the iliac wing. CONCLUSION: This modified technique is technically straightforward and cost-effective. It preserves the contour and shape of the iliac crest and avoids cosmetic deformities and chronic pain at the graft site. It creates a window in the iliac wing rather than disrupting the continuity of the iliac crest, which leaves the iliac wing structurally stronger than with currently used techniques.
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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 | 0.001 |
| 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 | 0.000 |
| 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".