Table 4.

Summary of patient characteristics and surgical and radiological parameters of group 1

Characteristic	No adjacent Fx. (n=33)	Adjacent Fx. (n=14)	X2	p-value
Age (yr)	77.09±8.60	74.93±8.75		0.437a)
Male:female (male%)	5:28 (15.1)	4:10 (28.6)	1.143	0.419b)
Body weight (kg)	55.85±10.52	55.07±8.89		0.810a)
Thoracic:TLJ:lumbar (TLJ%)	2:20:11 (60.6)	0:7:7 (50.0)	1.409	0.470b)
T-score	−4.96±1.32	−4.24±1.72		0.130a)
Intravertebral cleft	3 (9.1)	2 (14.3)	0.28	0.627b)
PVP session (2:1, 1 session%)	23:10 (30.3)	7:7 (50.0)	1.652	0.199c)
No. of PVP/percutaneous kyphoplasty	30:3 (90.9)	14:0 (100.0)	1.360	0.544b)
No. of unilateral/bilateral	8:25 (75.8)	4:10 (71.4)	0.097	0.731b)
Teriparatide use	3:30 (9.1)	0:14 (0)	1.360	0.544b)
Bisphosphonate or selective estrogen receptor modulator use	22:11 (66.7)	10:4 (71.4)	0.103	1.000b)
Superior inject volume (mL)	4.70±1.74	5.11±1.30		0.507a)
Inferior inject volume (mL)	5.21±1.26	5.49±1.85		0.572a)
Discal leakage (leakage rate)	10:23 (30.3)	6:8 (42.9)	0.690	0.506b)
Superior height restoration rate (%)	5.59±7.72	5.12±6.31		0.847a)
Inferior height restoration rate (%)	4.32±6.55	6.48±8.24		0.356a)
Superior wedge angle (°)	10.05±5.25	11.16±5.78		0.532a)
Superior wedge angle change (°)	2.19±3.05	2.48±3.73		0.792a)
Inferior wedge angle (°)	6.10±4.42	5.35±3.19		0.584a)
Inferior wedge angle change (°)	1.64±2.14	2.39±2.97		0.338a)
Mean preoperative kyphotic angle (°)	17.76±10.22	14.93±9.32		0.391a)
Mean postoperative kyphotic angle (°)	15.23±10.46	12.08±8.33		0.323a)

Values are presented as mean±standard deviation or number (%).

Fx., fracture; TLJ, thoracolumbar junction; PVP, percutaneous vertebroplasty.

^a)Comparison made by performing Student t-test.

^b)Comparison made by performing Fisher’s exact test.

^c)Comparison made by performing the chisquare test.