Forty-five patients with incomplete cervical spinal cord injuries were
examined as to the mechanism of injury, neurological deficits in the
initial stage and differences in treatment. Nineteen (42.2%) were trea
ted non-surgically and 26 (57.8%) surgically. Their injuries could be
divided into seven types of cervical spinal cord injury according to U
sui's classification. Neurological changes were evaluated with Frankel
's grading system. The neurological prognosis was relatively better in
those with a unilateral cord injury type, but there was no statistica
l difference. Thirty-seven patients (82.2%) showed neurological improv
ement of at least one Frankel grade. There was no statistical differen
ce between the surgical and nonsurgical groups regarding neurological
improvement, but all who underwent early surgery (within 4 weeks of be
ing injured) improved. Surgical treatment was considered to be indicat
ed for patients with cervical spinal canal narrowing, when satisfactor
y neurological improvement is not obtained by conservative treatment.