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Table 2 Summary of radiologic and clinical date obtained in 19 patients

From: Basilar invagination without atlantoaxial dislocation: treatment by correction of clivus canal angle with interfacet distraction and fixation

Patient no.

Sex/ Age (year)

CL (mm)

complication

CCA, (deg)

pB-C2 (mm)

JOA

Follow-up (month)

fusion

Pre

Post

Pre

Post

Pre

Post

1

F/35

17.8

None

126.8

139.5

6.8

4.7

12

15

36

+

2

 F/66

11.8

None

130.6

137.5

6.5

4.4

11

15

26

+

3

 F/33

9.6

None

134.5

147.5

4.5

2.1

13

15

24

+

4

 F/31

10.6

None

126.4

137.5

8.5

5.8

12

15

24

+

5

 F/27

8.1

None

130.2

139.7

6.3

3.7

9

12

24

+

6

 F/30

14.1

None

127.1

138.3

3.8

1,5

9

11

24

+

7

M/61

12.4

None

135.9

146.7

7.9

6.8

11

14

30

+

8

 F/40

7.7

None

143.1

152.4

8.1

7.6

13

15

30

+

9

M/51

6.2

None

128.3

135.6

4.5

1.9

13

16

18

+

10

 F/40

7.8

None

137.3

148.5

7.3

3.2

14

14

30

+

11

M/56

12.1

None

119.4

128.7

4.9

2.1

12

14

24

+

12

M/28

15.4

CSF leak

109.3

121.3

10.3

6.6

15

16

24

+

13

 F/59

11.2

None

129.4

143.6

11.3

8.2

13

14

24

+

14

 F/33

15.6

None

132.9

141.6

9.1

6.1

9

13

28

+

15

 F/37

5.9

None

136.7

146.7

8.9

7.6

12

14

28

+

16

 F/32

19.8

None

111.9

119.4

9.6

6.3

13

14

26

+

17

 F/40

5.9

None

134.7

143.1

7.7

4.4

15

16

24

+

18

M/51

12.3

Delayed healing of incision

136.5

148.9

10.6

8.8

15

15

18

+

19

M/44

11.7

None

126.5

138.8

5.4

2.6

13

15

12

+