5. Conclusion
KOA
In this retrospective study, we analyzed the rich research components in PRP and KOA research, including the number of articles, authors, journals, H-index, countries, institutions, and keywords. The study was conducted using bibliometric visualization analysis. The information highlighted in these constituents provided reliable information for the visualization analysis. The network among the constituents analyzed in this study can help scholars to build a knowledge structure in the field of PRP and KOA. This study is significant for understanding the current state of research and hotspots in this research area. Researchers can understand the cutting-edge knowledge of research in this field by gaining insight into authors, institutions, and journals with outstanding contributions in this research field and by tracking their latest progress. In addition, it can be combined with the high-value knowledge structure of this research to guide the scientific research direction of researchers.