Successful Management of a Vancouver Type C Periprosthetic Femur Fracture in a Nonagenarian: Surgical Challenges and Review of Current Concepts
Bibliographic record
Abstract
Abstract Periprosthetic femur fractures are complex and challenging to manage, especially in elderly patients. Vancouver Type C fractures, which occur distal to the femoral stem, pose significant surgical challenges due to the need for stable fixation in often osteoporotic bone. This article describes the management of a 91-year-old female with a Vancouver Type C periprosthetic femur fracture treated with open reduction and plating. A 91-year-old female presented with a periprosthetic femur fracture classified as Vancouver Type C. She underwent open reduction and internal fixation with plating. Despite her advanced age, significant comorbidities, and severe osteoporosis, she demonstrated good postoperative recovery, with bone healing observed at follow-up visits. Managing periprosthetic femur fractures in elderly patients requires careful surgical planning and consideration of the patient’s overall health and bone quality. This case highlights the feasibility and effectiveness of open reduction and plating in achieving satisfactory outcomes for Vancouver Type C fractures in very elderly patients.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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".