PRP	platelet-rich plasma
HA	hyaluronic acid
VAS	Visual Analogue Scale
KOOS	Knee and Osteoarthritis Outcome System
EUROQOL	European Quality of Life scale
PDGF	platelet-derived growth factor
TGF β	transforming growth factor β
IGF-1	insulin-like growth factor
FGF	fibroblast growth factor
AEMPS	Spanish Agency of Medicines and Medical Devices
CPD	phosphate and dextrose
ASD	daily activities