• Yaodong Wang, Chi Yao, Zhuo Yang, and Wenlai Guo.
• Department of Physical Education, China University of Mining & Technology-Beijing, Beijing, China.
• J. Int. Med. Res. 2020 Sep 1; 48 (9): 300060520955059.

ObjectiveThe clinical efficacy of platelet-rich plasma (PRP) as adjuvant therapy in patients undergoing arthroscopic repair of meniscal injury remains controversial. This meta-analysis was performed to evaluate the clinical efficacy of PRP in the treatment of meniscal injury and provide evidence for the selection of clinical treatment options.MethodsA computer-based search of the PubMed, Embase, and Cochrane Library databases was performed to retrieve articles using the search terms "platelet-rich plasma" and "menisci." Quality evaluation and data extraction were performed. The combined effect was assessed using RevMan version 5.3 software.ResultsThree randomized controlled trials and three cohort studies involving 293 patients were included in the meta-analysis. There were no significant differences in the International Knee Documentation Committee score or Lysholm score between the experimental and control groups. The failure rate and visual analog scale score were significantly lower and the degree of active flexion was significantly higher in the experimental group than in the control group.ConclusionThe findings of this meta-analysis suggest that PRP injection can effectively enhance the efficacy of arthroscopic repair of meniscal injury, reduce the failure rate and severity of pain, and improve active flexion.

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