A rare variant of the median nerve as a reminder of the patient uniqueness
Bibliographic record
Abstract
Objective Despite the wealth of data concerning anatomical variation of the median nerve, it remains important to continue describing rare variations as they arise. This study represents a unique variation of the median nerve in the human forearm. Methods 32 upper limbs of 16 embalmed cadavers were utilized using anatomical dissections. Results The median nerve in a right forearm of a 61 year old male cadaver followed the pathway seen in the majority of cases except during the course within the epimysium of the deep surface of Flexor Digitorum Superficialis (FDS). About half way down the muscle belly, a substantial branch equal in diameter to the main trunk of the median nerve, branched off the main trunk and perforated the FDS muscle. This variant branch continued distally within the FDS muscle belly, until it reached the distal third of forearm. Then, this aberrant branch reunited with the main trunk of the median nerve as it emerged on the lateral aspect of the distal tendon of FDS (7.4cm distally from the branch point at a level 2.5cm proximal to the pisiform bone). Conclusion The unique variation described in this study was not found to be described in the literature. It is a reminder of the concept of patient uniqueness and the need for individualization of medical, manual, and surgical treatments offered to patients.
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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 | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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 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".