Total hip arthroplasty for acute acetabular fractures through the replace-in-situ philosophy
Bibliographic record
Abstract
Aims: This study investigated the outcomes of total hip arthroplasty (THA) performed for acute acetabular fractures through a replace-in-situ technique, where no attempt was made at fracture reduction, fixation, or restoration of columns before acetabular component insertion. Methods: We report the clinical outcomes at a mean follow-up of five years of 41 acute complex acetabular fractures in 41 patients, with a mean age of 76 years (54 to 97), who underwent THA through a replace-in-situ technique. Results: Four patients died during the acute episode of care, and one within 12 months. All fractures healed within six months and all patients who survived the acute episode of care returned to their baseline function. A total of four patients underwent further surgery: one underwent revision for cup loosening at 18 months, one underwent open reduction and internal fixation of a femoral periprosthetic fracture at seven years, and two underwent head-liner exchange at two and four months for recurrent dislocation. One additional cup was radiologically loose but not revised, as this caused no additional symptoms. Conclusion: THA using a replace-in-situ technique shows promising results comparable to those reported for fix-and-replace techniques. As clinical outcomes continue to be inferior to those of THA for osteoarthritis, larger multicentre studies are required to investigate possible differences between surgical indications and techniques.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".