Table 7.

Mean decrease rate of ROM for anterior versus posterior surgery

Study	Edwards et al. [34]		Lee et al. [29]		Wada et al. [35]
	Corpectomy and fusion with instrumentation	Laminoplasty and fusion	Corpectomy and fusion with instrumentation	Laminoplasty and fusion	Corpectomy and fusion without instrumentation	Laminoplasty and fusion
Item
Follow-up time	49 months	40 months	21.8 months	29.1 months	15 years	11 years
Number of patients	13	13	20	27	23	24
Mean decrease rate of ROM	56.8	38.5	54.2	44.5	51.3	71.1
P value	>0.05		>0.05		<0.05a

ROM range of motion from C2 to C7

^aStatistically significant