頚髄症に対する脊柱管拡大術の臨床的検討

抄録

Surgical cervical canal enlargement by modified Hirabayashi's method has been performed for twenty-seven patients with cervical myelopathy due to spondylosis and ossification of posterior longitudinal ligament.
Post-operative results were as follows:
1) Cervical canal was enlarged by 7.3mm in sagittal diameter and 66% in the rate.
2) Cervical canal was stabilized at about 6 montes after operation.
3) Improvement points with JOA Standard were about four.
4) Enlargement rate in the sagittal diamter was not correlated with the clinical improving rate by Hirabayashi's evaluating method.