Table 1 Characteristics and clinical data of the patients

Mean age/years

57.0 ± 11.3

Gender

Male

65

Female

26

Region of tuberculosis

Thoracic (T1-10)

17

Thoracolumbar(T11-L2)

42

Lumbar (L3-L5)

34

Mean surgery duration (minutes)

195.6 ± 15.4

Mean blood loss (ml)

575.9 ± 90.1

Average hospital stays(days)

19.9 ± 2.2

Average follow-up period(months)

24.1 ± 4.0

Bone graft type

 Three cortical iliac bone grafts

33

 Ribs and transverse process bone grafts

20

 Lamina bone grafts

38