Radiocarpal and midcarpal joint congruency after perilunate dislocations and fracture-dislocations: a cross-sectional study
Bibliographic record
Abstract
The purpose of this study was to evaluate carpal joint contact patterns after perilunate injuries and potential associations between functional and radiographic outcomes. Twenty-two patients with a computed tomography (CT) scan at least 2 years postoperatively were reviewed (mean follow-up 15 years). Assessment of carpal degenerative changes was done using Kellgren–Lawrence grading and CT-derived joint space area, which was calculated as the total area with interbone distance less than 2 mm. Increased joint space area signified a greater area with joint space narrowing and cartilage loss. Fifteen patients had severe joint space narrowing at the scaphocapitate and capitolunate joints. Nine and seven patients had severe narrowing at the radiolunate and radioscaphoid joints, respectively. Degenerative changes did not follow a typical scapholunate advanced collapse pattern. Increased scaphocapitate joint space area was associated with worse Patient Rated Wrist Evaluation scores ( r = −0.47, p = 0.02) and visual analogue scale pain scores ( r = −0.44, p = 0.03). This study suggests that patients with more severe degenerative changes after perilunate injuries may have worse functional outcomes. Level of evidence: IV
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 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".