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Table 2 Patients’ neurological status before and after the operation according to American Spinal Injury Association (ASIA) impairment scale

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 5 14.3%
4 11.4% ASIA B 2 5.7%
12 34.3% ASIA C 6 17.1%
12 34.3% ASIA D 15 42.9%
2 5.7% ASIA E 7 20.0%