Management of type B2 and B3 post-operative proximal periprosthetic femoral fractures, Oghara experience
Bibliographic record
Abstract
Objective: To report the outcome of treatment of Types B2 and B3 Post- operative Periprosthetic proximal femoral fracture (PPFF) in four patients treated in Delta State University Teaching Hospital, Oghara, Delta State, using Vancouver classification of Duncan and Masri. Methodology: A retrospective study of four cases managed in this hospital. Information retrieved from case notes were sex, age, duration of prosthesis, treatment given, complications and outcome of treatment. Result: Atotal of 4 patients were reviewed in the study, 2 males and 2 females with a M: F of 1: 1. Duration of the implant before treatment was 5-12 years (mean of 8.3years). Age range was 60-83years (mean of 67.5 years). Two patients had Type B2 and two had Type B3. Average intraoperative blood loss was 1 litre. Duration of surgery was 3-4 hours. Duration of hospital stay was between 3 weeks and 5 months. The complications seen were primary haemorrhage, wound infection, hip dislocation and pulmonaryembolism. The outcome was good for 3 patients and fair in 1, using Harris Hip Score. Conclusion:Vancouver classification of Duncan and Masri is effective in the treatment of PPFF. Key words; Periprosthetic femoral fracture, Long stem hip prosthesis, Vancouver classification, osteolysis.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| 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 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".