Poster 293: Neonatal Spinal Cord Injury ‐ Central Cord Syndrome: A Case Report
Bibliographic record
Abstract
G. Bosques, None. A 7-week-old male presenting with bilateral upper extremity weakness since birth. The patient's antenatal course was complicated by maternal drug use, prostitution, and rape 2 weeks before delivery. Delivery was by caesarean section for breech presentation after spontaneous rupture of membranes with meconium-stained amniotic fluid. No movement of the right arm and limited movement of the left were noted at birth. MRI of brain, spinal cord, and right brachial plexus at age 3 days revealed a small left frontal infarct and increased C3-C5 signal intensity, thought to be artifactual. By age 3 months, bilateral deltoid activity remained unobserved and Toronto scores were bilaterally 2/10, for full right elbow extension and full left elbow flexion. Right grasp was recovered, with a wrist drop. No response to light pinch was observed below C4 bilaterally, with no sacral sparing. At age 3 months, spinal cord MRI showed unusual tilt of the spinal cord at C4 with no abnormal signal in the spinal cord; electrodiagnosis suggested brachial plexopathy. Upon right brachial plexus exploration, a thin C5 root was found; the injury was otherwise felt to be neuropraxic. Repeat cervical spine MRI at age 9 months showed definitive C3-C6 central myelomalacia, consistent with a central spinal cord injury. Brachial plexus interdisciplinary clinic. At age 15 months, our patient began ambulating with a gait trainer. He continued with minimal shoulder flexion bilaterally, no voluntary right elbow flexion, and limited right grasp. Clinical and late MRI findings are consistent with central cord syndrome with concurrent right brachial plexus palsy. To our knowledge, this is the first reported case of neonatal central cord syndrome. Although neonatal spinal cord injury is rare, it should be considered when a newborn presents with bilateral upper extremity weakness.
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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 | 0.000 |
| 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".