. 2015 Jun 5;6(2):186–194. doi: 10.1055/s-0035-1554777

Table 1. Summary of the demographic information for studies included in the meta-analysis.

Study	Level of evidence	No. of patients	Age (y)	Duration of follow-up (mo)	Fracture type	Neurologic deficit	Fusion	Operative fixation
Vanek et al 2014¹³	II	A: 18; B:17	A: 39.4; B: 45.6	24	Thoracolumbar AO A3.1–A3.3	No	No	A: open short-segment pedicle screw; B: MIS short-segment pedicle screw
Wang et al 2014¹⁴	III	A: 22; B: 39	A: 46; B: 41.3	A: 22.6; B: 21.7	Thoracolumbar AO type A	No	No	A: open short-segment 4 pedicle screws; B: MIS short-segment 4 or 6 pedicle screws
Dong et al 2013¹⁵	III	A: 17; B: 21	A: 36.3; B: 36.3	17.3	Thoracolumbar AO type A, B1.2, or B2.3	No	No	A: open short-segment pedicle screw; B: MIS short-segment pedicle screw
Lee et al 2013⁵	III	A: 32; B: 27	A: 36.3; B: 36.3	A: 30.2; B: 39.7	Single-level thoracolumbar (T11–T12)	No	No	A: open short-segment pedicle screw; B: MIS short-segment pedicle screw
Grossbach et al 2013¹²	III	A: 11; B: 27	A: 40.1; B: 27.4	A: 9; B: 18.5	Thoracolumbar flexion-distraction (AO B1.2 most common)	No	No	A: open short-segment pedicle screw; B: MIS short-segment pedicle screw
Jiang et al 2012¹¹	I	A: 31; B: 30	A: 42.4; B: 42.4	59	Single-level thoracolumbar (T11–L2)	No	No	A: open short-segment pedicle screw; B: MIS short-segment pedicle screw

Abbreviations: A, group A, open pedicle screw placement; B, group B, percutaneous pedicle screw placement; MIS, minimally invasive surgery.