Table 1 Preoperative Patient Characteristics

Gender

 Male

12

17

29

 Female

12

11

23

Age (years)

41.1 ± 19.3

43.2 ± 17.1

42.2 ± 18.0

Follow-up period (months)

27.2 (13.1–35.3)

22.3 (16.2–38.0)

23.2 (15.5–36.6)

Lesion location^a

 T4-T10/11

9

13

22

 T11-L2

11

10

21

 Below L2

8

9

17

Lesion severity

 Involved vertebral body (n)

2.0 (1.3–2.8)

2.0 (2.0–2.0)

2.0 (2.0–2.0)

 Involved intervertebral disc (n)

1.0 (1.0–1.8)

1.0 (1.0–1.0)

1.0 (1.0–1.0)