• 1. Department of Pediatric Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China;
  • 2. Department of Cardiac Function, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China;
  • 3. Department of Joint Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China;
CAOLi, Email: xjbone@21cn.com
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Objective To systematically evaluate the efficacy and safety of intra-articular injection of hyaluronic acid for knee osteoarthritis. Methods Databases including PubMed, EMbase, The Cochrane Library (Issue 1, 2016), WanFang Data, CBM, and CNKI were searched to collect randomized controlled trials (RCTs) about intra-articular injection of hyaluronic acid for knee osteoarthritis from inception to February 2016. The meta-analysis was conducted using RevMan 5.3 software. Results A total of 17 RCTs involving 4 070 patients were included. The results of metaanalysis showed that: there were no significant differences in WOMAC pain scores (7 weeks: MD=-0.01, 95%CI -0.46 to 0.44, P=0.98; 13 weeks: MD=-0.01, 95%CI -0.46to 0.43, P=0.95; 26 weeks: MD=0.32, 95%CI -0.04 to 0.67, P=0.08), stiffness scores (7 weeks: MD=0.10, 95%CI -0.26 to 0.45, P=0.59; 13 weeks: MD=0.24, 95%CI -0.11 to 0.60, P=0.17; 26 weeks: MD=0.06, 95%CI -0.09 to 0.22, P=0.42), and life function scores (7 weeks: MD=-0.20, 95%CI -0.75to 0.36, P=0.49; 13 weeks: MD=-0.02, 95%CI -0.57 to 0.52, P=0.93; 26 weeks: MD=0.30, 95%CI -0.07 to 0.67, P=0.11) between the hyaluronic acid group and the control group in 7-, 13- and 26 weeks. However, the hyaluronic acid group was superior to the control group in 50-step test (MD=-0.49,95%CI -7.36 to -3.61,P<0.000 01). Conclusion Current evidence suggests that intra-articular injection of hyaluronic acid has better effect than control treatment for pain at movement. However, due to the limited quantity of the included studies, the above conclusion still need to be verified by more high quality studies.

Citation: LIUYi, Aili·Rehei, YANGDe-sheng, YEYuan-zheng, CAOLi. Efficacy and Safety of Intra-Articular Injection of Hyaluronic Acid for Knee Osteoarthritis: A Systematic Review. Chinese Journal of Evidence-Based Medicine, 2016, 16(10): 1183-1191. doi: 10.7507/1672-2531.20160180 Copy

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