ArticleJournal of pain research2018
Intra-articular ozone or hyaluronic acid injection: Which one is superior in patients with knee osteoarthritis? A 6-month randomized clinical trial.
Article in Journal of pain research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
37 citing papers in PubMed, 3 syntheses or guidelines pooled it, 75 citations in OpenAlex.
- The time-effect relationship of intra-articular ozone injection for knee osteoarthritis: a systematic review and meta-analysis.Frontiers in pain research (Lausanne, Switzerland) · 2026Pooled it
- Intra-articular Hyaluronic Acid Injections May Be Beneficial in Patients with Less Advanced Knee Osteoarthritis: A Systematic Review of Randomised Controlled Trials.Sports medicine (Auckland, N.Z.) · 2025Pooled it
- Intra-articular injections of ozone versus hyaluronic acid for knee osteoarthritis: a level I meta-analysis.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Pooled it
- The efficacy of ultrasonography-guided oxygen-ozone therapy versus corticosteroids in patients with knee osteoarthritis: A multicenter randomized controlled trial.Journal of back and musculoskeletal rehabilitation · 2024Trial
- Ozone Therapy versus Hyaluronic Acid Injections for Pain Relief in Patients with Knee Osteoarthritis: Preliminary Findings on Molecular and Clinical Outcomes from a Randomized Controlled Trial.International journal of molecular sciences · 2023Trial
- Cost-utility analysis and net monetary benefit of Platelet Rich Plasma (PRP), intra-articular injections in compared to Plasma Rich in Growth Factors (PRGF), Hyaluronic Acid (HA) and ozone in knee osteoarthritis in Iran.BMC musculoskeletal disorders · 2023Trial
- The comparison effects of intra-articular injection of Platelet Rich Plasma (PRP), Plasma Rich in Growth Factor (PRGF), Hyaluronic Acid (HA), and ozone in knee osteoarthritis; a one year randomized clinical trial.BMC musculoskeletal disorders · 2021Trial
- Efficacy of single high-molecular-weight versus triple low-molecular-weight hyaluronic acid intra-articular injection among knee osteoarthritis patients.BMC musculoskeletal disorders · 2020Trial
- The effects of ultrasound-guided corticosteroid injection compared to oxygen-ozone (OClinical rheumatology · 2018Trial
- Comparative efficacy of ultrasound-guided intra-articular injection of platelet-rich plasma (PRP), hydrolyzed type I collagen, and hyaluronic acid in patients with knee osteoarthritis: a randomized controlled trial.Future science OA · 2026Article
- Ozone Therapy as a Redox-Modulating Strategy in Degenerative Musculoskeletal Diseases: A Clinical-Mechanistic Review.Journal of clinical medicine · 2026Review
- Low ozone concentrations promoteEuropean journal of histochemistry : EJH · 2026Article
- Clinical Outcomes of Intra-Articular Ozone Injections in Hip Osteoarthritis: A Retrospective Study Comparing Different Injection Frequencies.Journal of clinical medicine · 2026Article
- Comparison of the Therapeutic Effects of Intra-Articular Injection of Ozone and Corticosteroid in Knee Osteoarthritis.Sisli Etfal Hastanesi tip bulteni · 2026Article
- Comparative Effectiveness of Low-Dose Intra-Articular Ozone Therapy for Pain and Functional Outcomes in Patients with Knee Osteoarthritis: A Retrospective Cohort Study.Journal of pain research · 2026Article
- Protective effects of ozone therapy on cartilage degeneration in temporomandibular joint osteoarthritis.Inflammopharmacology · 2025Article
- Ozone therapy for knee osteoarthritis: a literature visualization analysis of research hotspots and prospects.Medical gas research · 2025Review
- Comparison of Different Molecular Weights of Intra-Articular Hyaluronic Acid Injections for Knee Osteoarthritis: A Level I Bayesian Network Meta-Analysis.Biomedicines · 2025Review
- Efficacy and safety of ozone therapy for knee osteoarthritis: an umbrella review of systematic reviews.Frontiers in physiology · 2024Review
- Comparative Efficacy of Intra-Articular Injection, Physical Therapy, and Combined Treatments on Pain, Function, and Sarcopenia Indices in Knee Osteoarthritis: A Network Meta-Analysis of Randomized Controlled Trials.International journal of molecular sciences · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeKnee osteoarthritis (OA) is a common disease, imposing a great burden through pain and decreased function. There are many therapeutic modalities including non-pharmacologic choices and oral, topical, and intra-articular medications. New studies have shown promising results for ozone application in knee OA. Our aim was to compare the effects of ozone therapy versus hyaluronic acid (HA) intra-articular injection in knee OA patients.
methodsIn this randomized clinical trial, a total of 174 patients with more than 3 months of chronic pain or swelling in the knee joints along with consistent imaging findings were enrolled and randomly allocated into two groups of HA and ozone, which were planned to undergo 3 weekly injections of HA (Hyalgan®) and 10 mL of a 30 μg/mL ozone solution, respectively. Patients were evaluated at baseline and 6 months after the last injection for pain, stiffness, and function using the visual analog scale (VAS) and the Western Ontario and McMaster Universities Arthritis Index (WOMAC) questionnaire.
resultsNo major adverse events were detected in this study. Total WOMAC score decreased from 40.8±9.8 to 20.4±4.9 (
conclusionAlthough both ozone and HA can be effectively used for improving function and reducing pain in selected knee OA patients, neither of the two showed any superiority at 6-month follow-up.
Indexed as
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.