Bracing after percutaneous vertebroplasty for thoracolumbar osteoporotic vertebral compression fractures was not effective

Figures & data

Figure 1 The spinal brace used in this study (thoracolumbosacral orthosis), which can be adjusted according to the height and weight of the patient (red arrow indicates the front side and the head side).

Table 1 The relevant data of patients

Characteristics	Group A	Group B	P-value
Case	138	138
Age (years)	66.4±4.9	66.8±5.0	0.503
Sex (male/female)	52/86	49/89	0.708
BMD g/cm^3	−3.12±0.43	−3.08±0.38	0.414
The volume of bone cement	5.16±1.33	5.47±1.52	0.073
BMI kg/m^2	23.16±3.14	22.74±3.92	0.323
Level
T10	14	11	0.120
T11	29	17
T12	38	45
L1	35	38
L2	22	27
Preoperation
ODI	65.82±5.64	66.21±6.18	0.584
VAS	6.36±0.60	6.45±0.93	0.340
VCR	0.65±0.09	0.64±0.05	0.255

Note: Data shown as mean ± SD or number.

Abbreviations: BMD, bone mineral density (lumbar and left hip); BMI, body mass index; ODI, Oswestry Disability Index; VAS, visual analog score; VCR, vertebral body compression ratio.

Table 2 The clinical and radiological results

Characteristics	Group A	Group B	P-value
The second day after operation
VAS	2.27±1.53	2.49±1.57	0.240
VCR	0.73±0.15	0.75±0.13	0.238
2 weeks after operation
ODI	22.56±6.58	23.49±6.36	0.234
VAS	2.12±1.31	2.26±1.39	0.390
VCR	0.68±0.17	0.71±0.14	0.111
1 month after operation
ODI	21.24±5.7	22.97±6.85	0.023*
VAS	2.03±1.06	2.12±1.27	0.523
VCR	0.67±0.12	0.66±0.14	0.525
6 months after operation
ODI	15.28±2.79	15.94±3.57	0.088
VAS	1.56±0.72	1.71±0.79	0.100
VCR	0.66±0.13	0.64±0.15	0.238
Refracture	9/129	13/125	0.374
Collapse	22/116	27/111	0.431

Notes: Data shown as mean ± SD or number.

* Statistical significance.

Abbreviations: ODI, Oswestry Disability Index; VAS, visual analog score; VCR, vertebral body compression ratio.

Figure 2 Comparison of ODI, VAS, and VCR among the two groups.

Abbreviations: ODI, Oswestry Disability Index; VAS, visual analog score; VCR, vertebral body compression ratio; Op, operation.

Table 3 Clinical outcomes of patients with postoperative residual pain

Characteristics	Group A (n=11)	Group B (n=13)	P-value
The second day after operation
VAS	4.3±1.00	4.00±0.91	0.454
VCR	0.71±0.11	0.72±0.09	0.812
2 weeks after operation
ODI	31.24±5.60	28.22±5.24	0.190
VAS	3.22±0.98	2.92±0.76	0.416
1 month after operation
ODI	24.07±4.93	25.34±6.28	0.585
VAS	2.78±0.83	2.54±0.66	0.448
6 months after operation
ODI	16.79±2.65	17.21±2.89	0.088
VAS	1.78±0.44	1.85±0.69	0.767

Note: Data shown as mean ± SD.

Abbreviations: ODI, Oswestry Disability Index; VAS, visual analog score; VCR, vertebral body compression ratio.