Comparison of Percutaneous Kyphoplasty with or without Pedicle Screw Fixation in Osteoporotic Thoracolumbar Vertebral Fractures: A Retrospective Study

Table 1

The baseline characteristics of patients in the two groups.

Variable	PKP group ()	PKPF group ()	value
Age (years)			0.53
Body mass index
Gender
Male	17	13	0.45
Female	30	27
Fracture cause,
Fall	35	31	0.47
Vehicle injure	12	9
Fracture vertebra
T11	10	7	0.89
T12	12	11
L1	17	13
L2	8	9
Hospital stay (days)			0.03

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