Use of bearings with integrated ceramic insert in cementless total hip arthroplasty – a preliminary report.
Bibliographic record
Abstract
BACKGROUND: Ceramic-on-ceramic articulation presents advancement in the development modern of hip prostheses. It is particularly important for young patients, in whom complications related with polyethylene damages and metalosis pose a serious clinical problem due to the long period of implant functioning. The aim of this study was to assess the effect of total cementless hip replacement using an implant with a ceramic insert embedded in a metal cup and large prosthetic head constituting a ceramic-on-ceramic system in patients with hip osteoarthritis. MATERIAL AND METHODS: During years 2012-2013 there were 26 total hip replacements in 24 patients with use of integrated ceramic cup at Department of Orthopedic and Traumatology of the Central Clinical Hospital of Ministry of Interior, Warsaw. We assessed clinical and radiological outcomes of this procedure using HHS (Harris Hip Score), WOMAC (The Western Ontario and McMaster Universities Arthritis Index) and NRS (Numeric Rating Scale) scores. RESULTS: In our study group patients presented with a significant degree of improvement in passive range of motion in the hip joint and no postoperative complications were noted. Significant statistical improvement was noted after surgery in each of the following scales HHS (50.84 vs. 87.16), WOMAC (51.01 vs. 91.88) and NRS (6.8 vs. 0.45). There were no signs of early or radiological evidence of loosening and implant migration among our patients. CONCLUSIONS: Cementless total hip arthroplasty using an acetabular component with a ceramic insert embedded in metal and a large prosthetic head (a ceramic-on-ceramic system) is an effective and a noteworthy method of treatment of hip osteoarthritis in young people.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".