Hook-Plate Fixation in Patients with Acute Acromioclavicular Joint Dislocation Improved Radiographic But Not Clinical Outcomes Compared with Nonoperative Treatment
Bibliographic record
Abstract
Canadian Orthopaedic Trauma Society. Multicenter randomized clinical trial of nonoperative versus operative treatment of acute acromio-clavicular joint dislocation. J Orthop Trauma. 2015 Nov;29(11):479-87. ### Question: In patients with high-grade, acute acromioclavicular (AC) joint dislocation, does operative repair with hook-plate fixation improve patient outcomes more than nonoperative treatment? ### Design: Randomized (allocation concealed), unblinded, controlled trial with 2 years of follow-up and intention-to-treat analysis. ### Setting: 11 hospitals in Canada. ### Patients: 83 patients 16 to 60 years of age (mean age, 38 years; 94% men) who had a closed, complete (Rockwood grade-III to V) AC joint dislocation and were recruited ≤28 days after the injury. Exclusion criteria included previous surgery on the injured shoulder, scapulothoracic dissociation, vascular or ipsilateral shoulder injury, coracoid process fracture of the injured shoulder, or limited life expectancy. >80% of patients were assessed for secondary outcomes at 1 year; 1 year. ### Intervention: Operative repair (n = 40) or nonoperative treatment (n = 43). Operative repair was done ≤28 days after the injury and included anatomic …
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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 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 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".