Exploration of the vascular angiosome of the extended lateral arm free flap: A cohort study in cadavers
Bibliographic record
Abstract
ABSTRACT The lateral arm flap is a highly reliable and versatile fasciocutaneous flap for extremity reconstruction. The flap can be harvested in an extended fashion to include the thin skin of the proximal forearm. In the extended version, the maximum amount of skin that can be harvested from the forearm remains unknown. We performed a cohort fresh frozen cadaver dye injection study to investigate this question. A total of seventeen cadaver flap dissections were performed. Our primary goal was to capture the complete angiosome of the extended lateral arm flap, including length and width. Our secondary goal was to explore how much of the flap can be safely harvested distally, past the lateral epicondyle. The overall mean area of dye staining was 23.48±4.60 cm 2 , which represents the angiosome of the flap. The dye traveled an average of 3.60±4.94 cm into the forearm, past the lateral epicondyle, which suggests a “safe” zone for distal flap harvest. In conclusion, the extended lateral arm flap is a versatile option for extremity reconstruction and can be safely harvested distal to the lateral epicondyle. There is likely a limit, however, to how far distally the skin paddle can extend, which can be explored in future research.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| 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".