rhBMP-2	Recombinant human bone morphogenetic protein-2
TCP	Tricalcium-phosphate
HA	Hydroxyapatite
RANKL	Receptor activator of nuclear factor kappa ligand
PRISMA	Preferred reporting items for systematic reviews and meta-analyses
TP	Transverse process
BV%	Bone volume percentage
SYRCLE	Systematic review center for laboratory animal experimentation
ACDF	Anterior cervical discectomy and fusion
PLGA	Poly(lactic-co-glycolic acid)
DBM	Demineralized bone matrix
BMSC	Bone marrow stem cell
ADSC	Adipose stem cell
PRP	Platelet-rich plasma
PDRN	Polydeoxyribonucleotide
Ti-Al-V	Titanium–aluminum–vanadium
CaSR	Calcium-sensing receptor
PCL	Polycaprolactone
VEGF	Vascular endothelial growth factor