Table 1 Patient baseline characteristics

Age SCI (years)

29.0 ± 10.9

29.1 ± 11.1

28.5 ± 10.4

p = 0.856

Level of SCI

11.5 ± 5.6

11.2 ± 5.4

12.7 ± 6.2

p = 0.409

Age at first surgery (years)

46.3 ± 11.8

47.4 ± 12.6

41.4 ± 5.8

p = 0.125

AIS grade A (n, %)

41 (68.3)

36 (73.5)

5 (45.5)

p = 0.404

Duration of surgery (min)

251.0 ± 93.5

247.1 ± 85.0

268.4 ± 128.4

p = 0.501

Tethered vertebral segments (n)

7.8 ± 5.6

7.9 ± 5.6

7.1 ± 5.6

p = 0.670

Surgically treated segments (n)

2.8 ± 1.4

2.8 ± 1.4

2.7 ± 1.3

p = 0.918

Complication rate (n, %)

3 (5)

3 (6.1)

0 (0)

p = 0.400

Reintervention rate (n, %)

20 (33.3)

17 (34.7)

3 (27.3)

p = 0.637