Research library
Arthritis insights
Peer-reviewed arthritis research, translated into plain English.
ArthritisFree
Does stem cell therapy work for knees? Modest relief, uncertain repair
A Cochrane review of 25 randomised trials found stem cell therapy eased knee pain slightly, and that not one trial checked whether cartilage changed.
2025Sep 2026
ArthritisFree
Do PRP injections work for knee arthritis? Pain yes, cartilage no
PRP injections beat gel injections for knee arthritis pain over a year in pooled trials, but they do not regrow cartilage and guidelines do not back them.
2021Aug 2026