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Abstract Title:

Comparison between intra-articular ozone and placebo in the treatment of knee osteoarthritis: A randomized, double-blinded, placebo-controlled study.

Abstract Source:

PLoS One. 2017 ;12(7):e0179185. Epub 2017 Jul 24. PMID: 28738079

Abstract Author(s):

Carlos César Lopes de Jesus, Fânia Cristina Dos Santos, Luciana Maria Oliveira Bueno de Jesus, Iara Monteiro, Maria Sonia Sousa Castro Sant'Ana, Virginia Fernandes Moça Trevisani

Article Affiliation:

Carlos César Lopes de Jesus

Abstract:

OBJECTIVE: The aim of the trial was to determine the effectiveness of oxygen-ozone injections on knee osteoarthritis concerning pain reduction, joint functional improvement, and quality of life.

METHODS: In this randomized, double-blinded, placebo controlled clinical trial, 98 patients with symptomatic knee osteoarthritis (OA) were randomized into two groups receiving intra-articular 20μg/ml of ozone (OZ) or placebo (PBO) for 8 weeks. The efficacy outcomes for knee OA were the Visual Analogue Scale (VAS), Lequesne Index, Timed Up and Go Test (TUG Test), SF-36, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and Geriatric Pain Measure (GPM).

RESULTS: After 8 weeks of treatment, ozone was more effective than the placebo: VAS [mean difference (MD) = 2.16, p<0.003 (CI 95% 0.42-3.89)], GPM [MD = 18.94, p<0.004 (CI 95% 3.43-34.44)], LEQ [MD = 4.05, p<0.001 (CI 95% 1.10-7.00)], WOMAC (P) [median of diff = 9.999, p = 0.019 (CI 95% 0.000-15.000)], WOMAC (JS) [median of diff = 12.499, p<0.001 (CI 95% 0.000-12.500)], WOMAC (PF) = [median of diff = 11.760, p = 0.003 (CI 95% 4.409-19.119)], TUG (no statistical difference) and SF-36 (FC) [(MD = -25.82, p<0.001 (CI 95% 33.65-17.99)], SF-36 (PH) [MD = -40.82, p<0.001 (CI 95% -54.48-27.17)], SF-36 (GSH) [MD = -3.38, p<0.001 (CI 95% -4.83-1.93)], SF-36 (SA) [MD = 2.17, p<0.001 (CI 95% -19.67-8.24), SF-36 (EA) [MD = -35.37, p<0.001 (CI 95% -48.86-21.89)]. Adverse events occurred in 3 patients (2 in the placebo group and 1 in the ozone group) and included only puncture accidents.

CONCLUSIONS: The study confirms the efficacy of ozone concerning pain relief, functional improvement, and quality of life in patients with knee osteoarthritis.

TRIAL REGISTRATION: International Standard Randomized Controlled Trial Number Register ISRCTNR55861167.

Study Type : Human Study
Additional Links
Therapeutic Actions : Ozone Therapy : CK(42) : AC(6)

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