Research trends of platelet-rich plasma application in orthopaedics from 2002 to 2020: a bibliometric analysis.

The efficacy of PRP in treating orthopaedic diseases remains controversial. There are still some problems with the experimental methods, such as insufficient sample size, low level of evidence, confusion of system naming, lack of standardisation of preparation methods and application programs, and lack of in-depth basic scientific research. The research status shown by co-occurrence and cluster maps and the analysis of hotspots and frontiers may help solve present problems and explore new directions.