Clinical Outcome following Surgical Intervention for Periprosthetic Hip Fractures at a Tertiary Referral Centre
Bibliographic record
Abstract
Complications following surgical intervention for periprosthetic hip fractures are not uncommon. We report the clinical outcome following definitive surgical intervention for this indication at a single tertiary referral centre. All patients admitted between 2003 and 2009 undergoing such treatment were included. Patient demographics, all surgical interventions, complications following definitive fracture treatment, and postoperative mortality were recorded. Radiographs were reviewed to determine the Vancouver classification for each fracture. There were 67 patients (mean age at revision 76.7 years; 61% female). Fractures occurred around primary total hip arthroplasties (43%), revision arthroplasties (34%), and hip hemiarthroplasties (23%). Mean time to fracture from the most recent arthroplasty performed was 7.0 years. Most fractures were Vancouver type B2 (49%). The majority of patients underwent revision total hip arthroplasty (96%), using long-stemmed prostheses or proximal femoral endoprostheses, with cables for fracture fixation. Wound infection and systemic complications were seen in 16% and 13% respectively. One or more further surgical interventions were performed in 12%. There were no deaths in-hospital or at 30-days, with 10 fatalities (15%) at a mean 2-year follow-up. Lower rates of re-intervention and mortality were observed when surgery for acute periprosthetic hip fractures was performed at a tertiary centre. Revision hip arthroplasty with or without fracture fixation proved an effective and safe treatment of periprosthetic hip fractures in a high-risk patient population.
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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) | 0.000 | 0.001 |
| 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) | 0.002 | 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".