Efficacy of intra-articular hyaluronic acid in relief of pain in Kellgren and Lawrence grade 2 and 3 osteoarthritis knee
Bibliographic record
Abstract
Introduction: Intra-Articular Hyaluronic Acid (IA-HA) supplementation not only improvises the synovial fluid flow dynamics and viscoelasticity but also potentially offers a positive effect on the arthritic disease process by promoting in vivo IAHA production and by providing an intra-articular anti-inflammatory effect. Objective: The primary objective of this study was to compare a single 6ml, intra-articular injection of hylan GF-20 with conservative treatment in patients with symptomatic mild to moderate knee Osteoarthritis (OA). Methodology: Patients with primary OA knee pain were randomly assigned to arthrocentesis plus a 6ml intra -articular injection of either hylan G-F 20 or conservative methods of treatment in a prospective, single-blinded (evaluator) randomised control study. Results were evaluated at Pre Injection, 3, 8, 16 and 24 weeks post-injection. The primary outcome criterion was change from baseline over 24 weeks in Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index and VAS Score. Results: A total of 70 patients (Kellgren–Lawrence grade II or III) was randomly assigned. Patients receiving hylan G-F 20 experienced statistically significantly greater improvements in WOMAC scores and VAS scores, than patients receiving conservative treatment. No increased risk of local adverse events was observed. Conclusions: This prospective randomised control study demonstrated that, in patients with knee osteoarthritis, a single 6 ml intra-articular injection of hylan G-F 20 is safe and effective in providing statistically significant, clinically relevant pain relief over 24 weeks, with a modest difference versus conservative treatment.
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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 | 0.001 | 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 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".