From: Clinical application of the C2 pars screw technique in the treatment of ossification of the posterior longitudinal ligament
Pedicle group
Pars group
p-value
No. of patients
23
17
Age (year)
57.04 ± 8.84
58.88 ± 7.75
0.4981
Sex (male/female)
15/8
11/6
0.9732
Type of OPLL
1.0003
Continuous
10
7
Segmental
1
0
Mixed
12
Smoker (N)
0.8842
DM (N)
6
3
0.8034