Equivalent values between anterior vertebral height, wedge ratio, and wedge angle for evaluating vertebral mobility and deformity in osteoporotic vertebral fractures: a conventional observational study

Table 1 Morphometric values of Ha, Hp, WR, and WA on weight-bearing (SIT) and non-weight-bearing (DEC or SUP) radiographs

Grade	Level	n	SIT				DEC or SUP
Grade	Level	n	Ha (mm)	Hp (mm)	WR (%)	WA (°)	Ha (mm)	Hp (mm)	WR (%)	WA (°)
Grade 1	L1	4	23.8 ± 1.4	30.9 ± 1.7	77.1 ± 1.7	12.0 ± 1.8	27.5 ± 1.7	31.9 ± 3.3	86.5 ± 6.4	7.1 ± 3.3
	L2	3	21.2 ± 2.3	27.7 ± 3.4	76.6 ± 1.2	10.6 ± 1.6	23.0 ± 3.0	27.2 ± 2.9	84.7 ± 4.3	6.9 ± 2.7
	L1-2	7	22.7 ± 2.2	29.5 ± 2.9	76.9 ± 1.4	11.4 ± 1.7	25.6 ± 3.2	29.9 ± 3.8	85.7 ± 5.2	7.0 ± 2.8
Grade 2	T11	12	16.4 ± 2.3	26.2 ± 3.3	62.5 ± 3.2	16.8 ± 2.1	20.3 ± 3.5	27.2 ± 3.4	74.8 ± 6.7	11.5 ± 2.8
	T12	31	19.8 ± 2.1	30.1 ± 2.1	65.9 ± 4.3	16.8 ± 2.6	23.1 ± 3.0	30.4 ± 2.2	76.1 ± 7.5	12.0 ± 3.9
	L1	37	20.2 ± 2.0	30.8 ± 2.3	65.5 ± 3.8	16.9 ± 2.5	23.2 ± 2.2	30.9 ± 2.3	75.2 ± 7.1	12.6 ± 3.9
	L2	14	21.2 ± 2.0	32.2 ± 3.9	66.1 ± 5.8	17.0 ± 4.6	25.0 ± 2.3	32.3 ± 4.2	78.0 ± 7.3	10.9 ± 4.6
	T11-L2	94	19.7 ± 2.4 ^a	30.2 ± 3.1	65.3 ± 4.3 ^b	16.9 ± 2.8 ^b	23.1 ± 2.9	30.5 ± 3.1	75.9 ± 7.2 ^a	12.0 ± 3.9 ^a
Grade 3	T11	18	12.1 ± 3.3	24.2 ± 3.4	49.6 ± 11.4	22.9 ± 6.0	15.6 ± 4.5	24.9 ± 3.7	62.6 ± 15.6	17.0 ± 7.6
	T12	57	13.6 ± 3.6	28.3 ± 3.7	47.8 ± 10.4	24.4 ± 4.3	16.8 ± 3.6	28.5 ± 3.2	58.8 ± 9.9	19.7 ± 4.5
	L1	96	13.3 ± 3.0	28.6 ± 2.7	46.3 ± 8.5	24.6 ± 3.7	16.8 ± 3.9	29.0 ± 2.4	57.9 ± 11.7	19.7 ± 5.4
	L2	12	15.3 ± 3.3	31.3 ± 4.1	48.8 ± 7.5	22.9 ± 1.8	18.4 ± 3.8	31.5 ± 3.6	58.6 ± 10.1	18.9 ± 4.0
	T11-L2	183	13.4 ± 3.3^b,α	28.3 ± 3.5^α	47.3 ± 9.4^b,α	24.2 ± 4.1^b,α	16.8 ± 3.9^b,α	28.6 ± 3.2 ^α	58.7 ± 11.5^b,α	19.4 ± 5.3^b,α
Grades 1–3	T11-L2	284	15.7 ± 4.3	28.9 ± 3.5	54.0 ± 12.2	21.5 ± 5.3	19.1 ± 4.7	29.2 ± 3.3	65.0 ± 13.3	16.6 ± 6.1

The differences in the mean morphometric values between each grade of V-deformity were analyzed by one-way analysis of variance followed by Bonferroni’s post hoc test. The grade 1 vertebrae were located at L1 and L2
Grade, grade of vertebral deformity; Ha, anterior vertebral height; Hp, posterior vertebral height; V-deformity, vertebral deformity; WR, wedge ratio; WA, wedge angle; SIT, sitting position; DEC, lateral decubitus position; SUP, supine position
^ap < 0.05, ^b p < 0.001, grade 1 vs. grade 2 or 3
^αp < 0.001, grade 2 vs. grade 3

ISSN: 1749-799X