Hip Resurfacing vs. Metal‐On‐Metal Total Hip Arthroplasty
Bibliographic record
Abstract
Metal-on-metal hip resurfacing (HR) is emerging as an alternative to total hip arthroplasty (THA) in young adults with hip degeneration. Existing evidence shows that clinical outcomes and level of activity are similar after HR and Large diameter head (LDH)-THA; controversy persists regarding outcomes of HR and conventional THA. LDH-THA provides better range of motion as compared to HR and conventional THA. Complications such as femoral neck fracture and avascular necrosis of femoral head are unique to HR and are responsible for higher rate of femoral component failure when compared to THA. Metal ion release after HR and 28 mm metal-on-metal (MOM) THA differed in various studies based on implant characteristics. Finally, revision of HR provides clinical outcomes comparable to primary THA, which may be an important advantage in younger population if HR's mid and long term survivorship is proven adequate.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| 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) | 0.022 | 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".