Clinical evaluation of core decompression with bone marrow aspirate concentrate in early-stage avascular necrosis of the hip: a prospective observational study
Bibliographic record
Abstract
Background: To evaluate the efficacy of core decompression (CD) combined with bone marrow aspirate concentrate (BMAC) in early-stage avascular necrosis (AVN) of the hip by assessing pain, stiffness, functional impairment and quality of life (QOL). Methods: This prospective observational study was conducted at Gemcare Kamineni Hospital, Kurnool, on 46 patients with early-stage AVN (ARCO I–III). Patients underwent CD with BMAC. Outcomes were assessed pre- and post-operatively using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scale. Data were analyzed using paired t-test. Results: Mean pain severity score decreased from 4.18±0.90 pre-operatively to 2.50±0.86 post-operatively (p<0.05). Joint stiffness improved from 3.31±0.76 to 2.15±0.76 (p<0.05). Physical functioning score improved from 3.68±0.86 to 2.38±0.78 (p<0.05). Total WOMAC score reduced significantly from 3.75±0.90 to 2.38±0.80 (p<0.05). Conclusions: Core decompression combined with BMAC provides significant pain relief, improves hip function and enhances quality of life in early-stage AVN, delaying disease progression and the need for total hip arthroplasty.
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How this classification was reachedexpand
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 | 0.021 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.002 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".