Table 1

Descriptive statistics (mean ± standard deviation) according to the level. Analysis of variance (ANOVA) was used to compare the means of variables such as ligamentum flavum thickness/buckling across different cervical levels.

Characteristic	C2-C3	C3-C4	C4-C5	C5-C6	C6-C7	C7-T1	P Value^a
Thickness	0.26 ± 0.06	0.28 ± 0.07	0.29 ± 0.11	0.28 ± 0.09	0.27 ± 0.08	0.31 ± 0.08	<0.001
Buckling	0.03 ± 0.03	0.05 ± 0.05	0.10 ± 0.08	0.08 ± 0.09	0.05 ± 0.07	0.03 ± 0.04	<0.001
Disc height	0.71 ± 0.13	0.71 ± 0.21	0.72 ± 0.14	0.75 ± 0.15	0.72 ± 0.16	0.72 ± 0.20	0.331
Translation	0.26 ± 0.45	0.27 ± 0.35	0.27 ± 0.28	0.48 ± 0.63	0.30 ± 0.41	0.26 ± 0.25	<0.001
Rotation	3.03 ± 0.87	3.32 ± 1.53	4.02 ± 3.61	3.73 ± 1.77	3.27 ± 1.63	2.56 ± 1.22	<0.001

aRepeated measures ANOVA (Greenhouse-Geisser).