Model-based Radiostereometric Analysis of an Uncemented Mobile-bearing Total Ankle Arthroplasty System
Bibliographic record
Abstract
Model-based radiostereometric analysis (MBRSA) of a total ankle arthroplasty (TAA) prosthesis was studied for the first time. The TAA MBRSA system precision was determined from the double exams of 20 patients implanted with the Mobility(TM). The MTE for any direction was 0.07mm for the tibial component. The MTE was 0.09mm and the MRE was 0.51° for the talar component. The MTPM detection limits were 0.22mm and 0.85mm for the tibial and talar components. Both components followed the typical subsidence-stabilization pattern. There was little detectable continuous migration at one to two years. The median(range) MTPM at two years was 0.96mm(0.17-2.28mm) and 1.23mm(0.39-1.9 mm) for the tibial and talar components. There was no detectable inducible displacement observed for any components at two years, except one talar component. The median(range) MTPM induced by the loading at two years was 0.08mm(0.03-0.18mm) and 0.39mm(0.27-1.06mm) for the tibial and talar components.
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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 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".