Table 4.

Comparison between different studies.

Study	Year	No. of cases	No. of levels	Follow-up	Fusion rate	Dysphagia
Yang et al. [18]	2012	23	23	1 year	91% at 6 months, 100% at 1 year	17%
Hofstetter et al. [23]	2015	35	35	6 months	94%	3%
Barbagallo et al. [24]	2013	32	32	4 years	92%	15%
Scholz et al. [25]	2014	50	87	1 year	97%	10%
Current study	2017	25	30	1 year	92% at 6 months, 100% at 1 year	20%