Research recommendation(s) from an individual piece of guidance Guidance: Arthroscopic radiofrequency chondroplasty for discrete chondral defects of the knee Date issued: 27 May 2014 Research recommendations coming out of this guidance Further research into arthroscopic radiofrequency chondroplasty of the knee should clearly document patient selection and the types of chondral defects being treated. More evidence on long-term outcomes would be useful.