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Table 2 Postoperative outcomes

From: Application of C2 subfacetal screws for the management of atlantoaxial dislocation in patients with Klippel-Feil syndrome characterized by a narrow C2 pedicle and high-riding vertebral artery

Patient

C2 right

C2 left

Subfacetal screw length in bone

Postoperative neurological status

Transverse foramen violation

Bone fusion

Follow-up

Complications

1

Subfacetal

Subfacetal

18.2 (R) and 18.5 (L)

Improved

No

Yes

25

No

2

Subfacetal

Pedicle

21.3 (R)

Improved

No

Yes

22

No

3

Pedicle

Subfacetal

19.3 (L)

Improved

No

Yes

18

No

4

Subfacetal

Subfacetal

20.9 (R) and 21.2 (L)

Improved

No

Yes

17

No

5

Subfacetal

Subfacetal

21.5 (R) and 19.7 (L)

Improved

No

Yes

15

No

6

Subfacetal

Subfacetal

19.8 and 20.9 (L)

Improved

No

Yes

12

Infection

7

Subfacetal

Subfacetal

17.1 (R) and 17.9 (L)

Improved

Yes

Yes

15

No

  1. L left; R right