Table 2.

Mean and standard deviation of posterior slope according to sagittal plane osteotomy inclination (SPOI) in the actual simulation (n = 10)

		SPOI 20°	SPOI 10°	SPOI 0°	SPOI −10°	P-valuea
Correction Angle	5°	10.0 ± 0.2°	10.1 ± 0.2°	9.9 ± 0.3°	9.7 ± 0.3°	0.016
	10°	10.3 ± 0.3°	9.8 ± 0.6°	9.8 ± 0.2°	9.6 ± 0.1°	< 0.001
	15°	11.2 ± 0.7°	10.0 ± 0.2°	9.6 ± 0.2°	9.2 ± 0.2°	< 0.001
	20°	11.6 ± 0.4°	10.1 ± 0.4°	9.2 ± 0.3°	8.7 ± 0.3°	< 0.001
	25°	11.9 ± 0.4°	10.0 ± 0.3°	9.1 ± 0.5°	8.0 ± 0.4°	< 0.001
	30°	12.5 ± 0.3°	9.9 ± 0.3°	8.8 ± 0.5°	7.0 ± 0.4°	< 0.001
P-valuea		< 0.001	0.485	< 0.001	< 0.001

^aKruskal-Wallis test