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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