ASC	Adipose-tissue-derived stromal/stem cells
cSVF	Cellular stromal vascular fraction
EQ-5D	EuroQol 5 dimensions
EQ-VAS	EuroQol 5 visual analogue scale
FDO	Fat-derived orthobiologics
FJS	Forgotten Joint Score
HA	Hyaluronic acid
ICRS	International Cartilage Repair Society Macroscopic Evaluation of Cartilage Repair
IKDC	Subjective International Knee Documentation Committee
IKS	International Knee Society score
K-L	Kellgren–Lawrence
KOOS	Knee Injury and Osteoarthritis Outcome Score
KKS	Knee Society score
LoE	Level of evidence
Lysholm	Lysholm knee score
ME	Meniscectomy
MRI	Magnetic resonance imaging
MKM	Marx knee measure
MOCART	MRI observation of cartilage repair tissue
MQ	Methodological quality
MSC	Mesenchymal stem cell
OA	Osteoarthritis
OARSI	Outcome measures in rheumatology–osteoarthritis research society international
OKS	Oxford knee score
PGIC	Oatients’ global impression of change scale
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PRP	Platelet-rich plasma
PROMs	Patient-Reported Outcome Measures
RCT	Randomized controlled trial
ROM	Range of motion
SF-12	Short form health survey-12
SVF	Stromal vascular fraction
Tegner	Tegner activity scale
tSVF	Tissue stromal vascular fraction
TUG	Timed up and go test
WOMAC	Western Ontario and McMaster universities
10 m WT	10 m walk test
5 × STS	5 times sit to stand test