Poster 194: Arthroscopic Reconstruction of Comminuted Glenoid Fractures Using Distal Tibia Allograft Results in Excellent Post-Operative Outcomes
Bibliographic record
Abstract
Objectives: Boney Bankart injuries with a fragment from the anterior rim of the glenoid are not the most frequent ones after an anterior shoulder dislocation but can cause severe impairment of the joint and residual instability directly related with the amount of bone avulsed. Different treatment options have been described including fixation or reconstruction of the glenoid bone using distal tibia allograft. The primary objective of this study is to analyze and compare clinical outcomes, Western Ontario Shoulder Instability (WOSI) scores, complication, and re-dislocation rates. Methods: This study included patients who underwent arthroscopic surgery for glenoid fracture between 2012-2020. Patients were included if they sustained a type Ia glenoid fracture according to Ideberg-Goss classification and if they were treated arthroscopically within three months of injury with one of two surgical techniques; Fixation (including fracture fragment reduction and fixation with screws, buttons, or sutures and anchors), and glenoid reconstruction. Patients were excluded if they had concomitant fractures to ipsilateral humerus or clavicle during injury and history of ipsilateral shoulder instability. Demographic information, WOSI scores, and complications related to the surgery, or new dislocation events were recorded. Results: Thirty-eight patients were included with both the fixation and reconstruction groups had similar demographics and baseline characteristics, except for the percentage of patients with comminution which was higher in the reconstruction group (p=0.04) (Table 1). Both the fixation and reconstruction groups has similar pre- and post-operative glenoid AP measurements (Table 1). Patient-reported outcomes were similar post-operatively between the two groups (p=0.546) (Figure 1). Conclusions: Arthroscopic glenoid fracture fixation has good outcomes but concerns exist regarding cartilage damage. Complex comminuted fracture patterns are suitable for reconstruction with patients achieving comparable outcomes to those who undergo fracture fixation. [Table: see text]
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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 | 0.000 | 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) | 0.009 | 0.002 |
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".