Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (27): 4421-4428.doi: 10.3969/j.issn.2095-4344.2771

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Therapeutic effects of platelet-rich plasma versus hyaluronic acid for knee osteoarthritis: a meta-analysis

Wang Yangfa1, Liu Jun1, Pan Jianke1, Gao Shihua2, Huang Junhan1, Li Huiwen1, He Xiangzhong1, Chen Haiyun1   

  1. 1Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China; 2Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Received:2019-12-11 Revised:2019-12-14 Accepted:2020-01-20 Online:2020-09-28 Published:2020-09-10
  • Contact: Chen Haiyun, Chief physician, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
  • About author:Wang Yangfa, Master candidate, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
  • Supported by:
    the Project of Guangdong Provincial Department of Finance, No. [2014]157, [2018]8; the Science and Technology Research Project of Traditional Chinese Medicine of Guangdong Hospital of Traditional Chinese Medicine, No. YN2019ML08, YN2015MS15, YK2013B2N19

Abstract:

BACKGROUND: Hyaluronic acid is a commonly used drug in the treatment of knee osteoarthritis, and platelet-rich plasma is a research hotspot in recent years. There is still controversy on the comparison of the effectiveness and safety between them.

OBJECTIVE: To systematically assess the efficacy and safety of platelet-rich plasma and hyaluronic acid for knee osteoarthritis through a meta-analysis.

METHODS: The authors systematically retrieved the databases of CNKI, VIP, Wanfang, CBM, PubMed, EMBase and Cochrane Library for randomized controlled trials regarding platelet-rich plasma versus hyaluronic acid for knee osteoarthritis published from inception to January 2020. Quality assessment was conducted on eligible randomized controlled trials. A meta-analysis was performed in WOMAC score, IKDC score, visual analogue scale score, Lequesne index and adverse events using RevMan 5.3 software.

RESULTS AND CONCLUSION: (1) Totally 21 randomized controlled trials were eventually includedinvolving 1 872 knees including 963 patients in the platelet-rich plasma group and 909 patients in the hyaluronic acid group. (2) Meta-analysis results showed that WOMAC scores were significantly lower in the platelet-rich plasma group than in the hyaluronic acid group at 3, 6 and 12 months after treatment [MD=-5.84, 95%CI(-10.11, -1.57), P=0.007; MD=-9.48, 95%CI(-13.02, -5.95), P < 0.000 01; MD=-10.47, 95%CI(-13.95, -7.00), P < 0.000 01]. Visual analogue scale scores were lower in the platelet-rich plasma group than in the hyaluronic acid group at 6 and 12 months after treatment [MD=-5.02, 95%CI(-8.87, -1.18), P=0.01; MD=-3.33, 95%CI(-4.89, -1.76), P < 0.000 1]. IKDC scores were higher in the platelet-rich plasma group than in the hyaluronic acid group at 3, 6, and 12 months after treatment [MD=7.10, 95%CI(3.88, 10.32), P < 0.000 1; MD=7.88, 95%CI(5.12, 10.65), P < 0.000 01; MD=6.85, 95%CI(2.50, 11.19), P=0.002]. Lequesne Index scores were lower in the platelet-rich plasma group than in the hyaluronic acid group at 6 and 12 months after treatment [MD=-0.82, 95%CI(-1.31, -0.32), P=0.001; MD=-2.37, 95%CI(-2.93, -1.81), P < 0.000 01]. No significant difference was found in adverse event rates between the two groups [OR=1.46, 95%CI(0.94, 2.24), P=0.09]. (3) The results show that compared with hyaluronic acid, platelet-rich plasma can relieve pain, improve function, improve the quality of life of patients with knee osteoarthritis, and the effect is more lasting. 

Key words: platelet-rich plasma, hyaluronic acid, knee osteoarthritis, knee joint, osteoarthritis, meta-analysis

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