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Spinal dural arteriovenous fistula presenting as progressive thoracic myelopathy

2021· article· en· W3152700703 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenuePractical Neurology · 2021
Typearticle
Languageen
FieldMedicine
TopicVascular Malformations Diagnosis and Treatment
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsMedicineWeaknessHyperreflexiaAnterior compartment of thighSurgeryMyelopathyNeurological examinationThighAnatomySpinal cord

Abstract

fetched live from OpenAlex

A 51-year-old man had a 4-month history of back pain and progressive leg weakness. The back pain was on the left side, radiating down his left buttock and leg to the dorsum of the foot. He had gradually developed bilateral leg weakness with a right foot drop such that he required a four-wheeled walker. There was accompanying left anterior thigh numbness and saddle anaesthesia, together with urinary urgency and one episode of faecal incontinence. He had been previously well, though 13 years before had sustained a non-specific back injury in a motor vehicle collision that did not require surgical intervention. On examination, there were lower limb hyperreflexia, patchy sensory loss in all modalities in both legs, a positive Beevor’s sign (upward movement of the umbilicus with attempted neck flexion due to weakness of the lower rectus abdominis)1 and absent rectal tone. Muscle strength was normal in the upper limbs, but 2/5 bilaterally in hip flexion, 4/5 bilaterally in knee flexion and extension, and 4–/5 …

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.369
Threshold uncertainty score0.608

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.033
GPT teacher head0.375
Teacher spread0.342 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it