Uncemented Ceramic-On-Ceramic THA in Adults with Osteonecrosis of the Femoral Head
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Advanced osteonecrosis of the femoral head is increasingly treated with uncemented total hip arthroplasty (THA), particularly in the younger population. While early outcomes appear promising, little is known about the optimum bearing surface in this patient subpopulation. The goal of this study was to evaluate the clinical and radiological outcomes of uncemented ceramic-on-ceramic THA in young adults with osteonecrosis of the femoral head. Twenty-four consecutive patients (24 hips) with osteonecrosis of the femoral head and 24 patients (24 hips) with osteoarthritis were treated with an uncemented ceramic-on-ceramic THA. Mean patient age for the osteonecrosis group was 46 years and for the osteoarthritis group was 50 years. At a mean follow-up of 34 months, functional improvement was significant in both groups (P<.01). The outcome was good to excellent for 85% of patients (17 hips) in the osteonecrosis group and 90% of patients (19 hips) in the osteoarthritis group. Harris and Oxford Hip scores were significantly better (P<.05) in the osteoarthritis group than in the osteonecrosis group at 6 months postoperatively but at no other assessment visit. Our results suggest that ceramic-on-ceramic THA in osteonecrotic patients produces similar clinical and radiological outcomes to those with osteoarthritis at a minimum 24-month follow-up. Ceramic-on-ceramic uncemented THA is therefore a useful adjunct for the treatment of advanced osteonecrosis of the femoral head.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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) | 0.000 | 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 it