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Table 2 Impact of grafting measures on successful maintenance of the reduction

From: Intraarticular bone grafting in atlantoaxial facet joints via a posterior approach: nonstructural or structural—a minimum 24-month follow-up

BI

Grafting

n

Successful maintenance

Unsuccessful maintenance

p value

No

NS

15

11 (73.33%)

4 (26.67%)

0.530

S

4

4 (100%)

0 (0)

Yes

NS

9

1 (11.11%)

8 (88.89%)

0.023

S

5

4 (80%)

1 (20%)

  1. BI basilar invagination, NS nonstructural grafting, S structural grafting