ALP	Alkaline phosphate activity
BMSCs	Bone marrow mesenchymal stem
β-TCP	Beta-tricalcium phosphate
CCZ	Calcified cartilage zone
ECM	Extracellular matrix
Gel	Gelatin
HA	Hydroxyapatite
hMSCs	Human mesenchymal stromal/stem cells
IKDC	International Knee Documentation Committee
Mg-HA	Magnesium-doped hydroxyapatite
MRI	Magnetic Resonance Imaging
n-HA	Nano-Hydroxyapatite
OC	Osteochondral
PA6	Polyamide-6
PEG	Polyethylene glycol
PEG-Da	Polyethylene glycol diacrylate
PGA	Poly-glycolic acid
PLGA	Poly(lactide-co-glycolide)
PLCL	Poly-lactide-co-caprolactone
PVA	Poly-vinyl alcohol
STZ	Superficial tangential zone
V	Vanillin