µCT	X-ray microtomography
AC	Articular cartilage
ACECM	Articular cartilage extracellular matrix
BV	Bone volume
DMEM	Dulbecco’s Modified Eagle’s Medium
FCS	Fetal calf serum
FGF	Fibroblast growth factor
ICRS	International Cartilage Repair Society
MACI	Matrix-induced autologous chondrocyte implantation
MACT	Matrix-associated autologous chondrocyte transplantation
MMP	Matrixmetalloprotease
MSC	Mesenchymal stromal cells
MWU	Mann–Whitney-U test
N	Number
n.a.	Not applicable
PCL	Polycaprolactone
PEG	Poly(ethylene glycol)
PLGA	Poly(lactid-co-glycolid)
SD	Standard deviation
TE	Tissue engineering
TV	Total volume
VLRH	Very low rubber hardness
VOI	Volume of interest