Effect of subsequent vertebral body fractures on the outcome after posterior stabilization of unstable geriatric fractures of the thoracolumbar spine

Table 3 Patients’ demographic data in dependence on the occurrence of subsequent vertebral body fractures

Parameter	Subsequent fractures (n = 14)		No subsequent fractures (n = 59)		p-value
Parameter	mean	Std	mean	Std	p-value
Age	74.4	5.9	71.1	6.5	0.09
Female gender [%]	54.2		92.9		0.01
Trauma mechanism	1.1	1.0	2.1	0.7	< 0.01
Fracture location	6.3	3.5	5.9	4.8	0.78
Fracture classification	3.5	0.8	3.3	0.9	0.31
ASA	2.6	0,5	2.2	0.8	0.33
Therapy strategy	1.4	0.5	1.5	0.7	0.45
Construct length [N/segments]	2.5	0.7	2.2	0.5	0.09
Follow-up time [months]	53.5	27.0	45.0	23.0	0.23

Std Short Standard deviation, Trauma mechanism: 1: not memorable, 2: low energy trauma; 3: moderate energy trauma; 4: high energy trauma; Fracture location: 1: L1; 2: L2; 3: Th 3; 4: Th4; 5: Th5; 6; Th6; 7: Th7; 8: Th8; 9: Th9; 10: Th10; 11: Th11; 12: Th12; 13: L3; Fracture classification: 1: type OF 1; 2: type OF 2; 3: type OF 3; 4 type OF 4; 5: type OF 5; ASA: Therapy strategy: 1: Hybrid stabilization (posterior stabilization + kyphoplasty of the fractured vertebral body; 2: posterior stabilization only; 3: combined anterior and posterior stabilization; American Society of Anesthesiologists; N/segments: number of segments

ISSN: 1471-2474