Table 1.

Specific operative techniques of anterior and posterior surgery in each study

Disease	Source	Anterior			Posterior
		Type	Fusion	Instrumentation	Type	Fusion	Instrumentation
Operative technique
CSM	Kristof et al. [28]	Ventral corpectomy	Autologous iliac crest	Yes	Laminectomy	Yes	Yes
CSM	Bapat et al. [30]	Discectomy or corpectomy or combination of the two	Iliac crest or cages	Partly	Laminectomy	Yes	NM
CM	Edwards et al. [34]	Corpectomy	Strut graft from iliac crest (1), allograft fibula (8) an autogenous fibula (4)	Anterior plate (11)	Open door laminoplasty (1), T-saw laminoplasty (10)	Yes	No
CSM	Wada et al. [35]	Subtotal corpectomy	Strut graft from iliac crest or fibula	No	Open door laminoplasty	Yes	No
CSM	Yonenobu et al. [37]	Subtotal corpectomy	Strut graft from iliac crest	No	Laminoplasty	Yes	No
OPLL	Lee et al. [29]	Corpectomy	Fibular bone allograft (15), cylindrically shaped mesh cages filled with cadaveric bone chips (5)	Yes	Laminoplasty	Yes	No
OPLL	Iwasaki et al. [31]	Subtotal corpectomy followed by total discectomy	Tricortical iliac crest autograft (9), fibular strut autograft (18)	Anterior plate (1)	Laminoplasty	Yes	No
OPLL	Jain et al. [32]	Corpectomy	Iliac crest bone graft	No	Laminectomy (12), open door laminoplasty (1)	N M	No
OPLL	Tani et al. [33]	Subtotal corpectomy and discectomy	Tricortical iliac crest autograft	Anterior plate (7)	Z-shaped laminoplasty (10), open door laminoplasty (1), spinous process splitting, laminoplasty (1)	Yes	No
OPLL	Goto and Gita [36]	Subtotal spondylectomy	Fibular grafting (partly)	No	Laminectomy laminoplasty	Yes	No

NM not mentioned