Table 1.

Comparison of general data of different open surgery approaches (n = 138, ‾x ± s)

	Anterior (n = 44)	Posterior (n = 42)	Anterior–Posterior (n = 52)	P
Pre-op
Gender (m/f)	25/19	24/18	31/21	0.954
Age	45.00 ± 8.771	46.33 ± 8.035	45.63 ± 8.272	0.761
Follow-up	61.30 ± 15.734	70.29 ± 21.678	66.56 ± 24.911	0.149
ESR	52.45 ± 16.043	52.90 ± 14.922	52.67 ± 16.366	0.991
CPR	21.714 ± 7.044	22.381 ± 10.531	19.913 ± 10.797	0.436
ODI	12.34 ± 1.976	13.00 ± 1.848	12.94 ± 1.787	0.186
VAS	5.91 ± 1.137	6.00 ± 1.126	6.19 ± 1.205	0.473
Kyphosis angle	17.705 ± 7.902	17.714 ± 7.409	15.538 ± 6.188	0.228
Hospital stays	13.55 ± 1.970	13.40 ± 1.768	15.06 ± 2.940	0.001
Bleeding	295.45 ± 103.978	385.24 ± 66.744	482.69 ± 55.910	0.000
Post-op
Operative time	140.30 ± 17.727	153.10 ± 18.707	209.13 ± 22.223	0.000
ESR	37.84 ± 11.658	29.38 ± 11.234	37.77 ± 11.676	0.001
CPR	10.520 ± 5.5484	10.807 ± 5.5023	11.492 ± 6.2294	0.699
ODI	9.27 ± 2.027	9.29 ± 2.075	9.46 ± 2.305	0.890
VAS	2.68 ± 0.561	2.60 ± 0.587	2.63 ± 0.561	0.779
Kyphosis angle	4.068 ± 2.585	1.857 ± 1.647	3.365 ± 2.629	0.000
Correction angle	13.636 ± 8.198	15.857 ± 7.621	12.173 ± 6.641	0.062
Correction rate (%)	71.34 ± 28.64	87.38 ± 13.36	74.47 ± 27.99	0.007
Correction angle loss	0.359 ± 0.564	0.405 ± 1.037	0.019 ± 0.431	0.000
Last
Loss ratio (%)	40.90	19.05	11.50	0.002
ESR	5.02 ± 2.074	4.69 ± 2.030	2.063 ± 1.3637	0.768
CPR	1.889 ± 1.1614	1.860 ± 1.2214	4.87 ± 2.223	0.691
ODI	2.05 ± 1.642	2.12 ± 0.861	2.40 ± 1.672	0.445
VAS	0.20 ± 0.408	0.21 ± 0.415	0.27 ± 0.448	0.722
Kyphosis angle	4.427 ± 2.5677	1.667 ± 1.4595	3.346 ± 2.5582	0.000