From: Does partial coating with titanium improve the radiographic fusion rate of empty PEEK cages in cervical spine surgery? A comparative analysis of clinical data
6 months
12 months
18 months
25th %
Median
75th %
Cases
8
14
22
16
20
31
26
34
Controls
12
18
24
30
p-value
0.223
0.163
0.071