Short- versus long-segment posterior spinal fusion with vertebroplasty for osteoporotic vertebral collapse with neurological impairment in thoracolumbar spine: a multicenter study

Table 1 Comparison of patients demographics

Variables	S group	L group	p value
Number of the patients	87	46
Detail of fused segments: segments (patients) (n)	2 (26) 3 (61)	4 (27) 5 (11) 6 (8)
Age at surgery	77 [72–80]	77 [73–82]	0.42
Men/women (n)	28/59	14/32	1
Affected vertebra (n)			0.59
Th10	3	3
Th11	7	5
Th12	36	18
L1	31	18
L2	10	2
Number of comorbidities	1 [0–1]	1 [0–2]	0.55
Secondary osteoporosis (%)	40.2	34.8	0.58
Preoperative medication of the osteoporosis drug (%)	28.7	41.3	0.18
Preoperative steroid administration (%)	6.9	10.9	0.51
F/u period (mon)	43 [30–59]	37 [30–54]	0.56

Continuous variables are shown as median [IQR: 25–75%]
Abbreviations: S, short-segment fusion; L, long-segment fusion; F/u, follow up

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