A Nomogram for Predicting the Residual Back Pain after Percutaneous Vertebroplasty for Osteoporotic Vertebral Compression Fractures

Table 3

Comparisons of VAS、ODI, and preoperative radiological parameters between patients between group N and group R.

Parameter	Group N (n = 231)	Group R (n = 37)	t/χ^2	value
VAS	6.41 ± 0.834	6.57 ± 0.647	−1.088	0.277
ODI	63.96 ± 11.35	64.51 ± 9.52	−0.283	0.778
AVH (mm)	15.12 ± 3.07	15.04 ± 2.96	0.155	0.877
AVHR (%)	49.82 ± 10.24	49.65 ± 10.13	0.095	0.924
Cobb angle (°)	27.34 ± 7.25	26.81 ± 8.26	0.403	0.687
IVC
No (cases)	217 (93.9%)	31 (83.8%)	4.763	0.029
Yes (cases)	14 (6.1%)	6 (16.2%)
Posterior fascia oedema
No (cases)	219 (94.8%)	31 (83.8%)	6.183	0.013
Yes (cases)	12 (5.2%)	6 (16.2%)
Paraspinal muscle degeneration
Goutallier grade 0-1	92 (39.8%)	3 (8.1%)	24.83	≤0.001
Goutallier grade 2	94 (40.7%)	14 (37.8%)
Goutallier grade 3-4	45 (19.5%)	20 (54.1%)