Bibliographic record
Abstract
Cartilage repair strategies have been applied successfully to the knee, but only recently and with limited experience to the hip. The indications for these strategies have been well defined for the knee and are defined by the diameter and depth of the defects that are mainly post traumatic and degenerative. Viscosupplementation is an intra-articular therapy that theoretically restores the protective effects of hyaluronic acid. This therapy has been widely used for osteoarthritis of the knee with some early preliminary promising results for osteoarthritis of the hip. Microfracture can be performed arthroscopically or as part of an open procedure. This procedure is indicated for smaller lesions less than 3cm in diameter and 1cm in depth. Widely used in the knee, the results in the hip are limited but promising. The repair tissue is however fibrocartilage. Autologous chondrocyte transplantation can yield hyaline like repair cartilage with good mid- to long-term results in the knee. The indications are chondral defects greater than 3cm in diameter or osteochondral defects less than 1cm in depth. Its use in the hip has been limited with only a few published papers. The procedure requires two stages. The first stage which involves harvesting the cartilage can be done arthroscopically, and the second stage which involves transplantation of the cultured chondrocytes can be done arthroscopically or open. Larger lesions greater than 3cm in diameter and 1cm in depth, can be managed by osteochondral allografts. The published mid- to long-term results for the knee have been encouraging. The results for the hip are early. To date we have performed this procedure on 16 patients. Surgical dislocation of the hip is carried out via a trochanteric osteotomy and the defect defined and trephined out. A press-fit fresh osteochondral allograft is inserted using the trephine technique. We have published our early results on a series of 8 patients with 5 good to excellent results, 1 fair results and 2 failures.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 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".