From: Posterior pedicle screw fixation to treat lower cervical fractures associated with ankylosing spondylitis: a retrospective study of 35 cases
Preoperatively
Neurological status
Postoperatively
5
14.3%
ASIA A
4
11.4%
ASIA B
2
5.7%
12
34.3%
ASIA C
6
17.1%
ASIA D
15
42.9%
ASIA E
7
20.0%