 Then, at the C6-C7 level, in a similar fashion, #15 blade was used to do a discectomy from uncovertebral joint to uncovertebral joint and from endplate-to-endplate using a #15 scalpel to enter the disk space and then the curette was then used to remove the disk calcified material in the endplate, and then high-speed drill under the microscope was used to drill down the disk space down to the posterior aspect of the annulus where a blunt trocar was passed underneath the posterior longitudinal ligament which was gently released. 
Then , at the C6 - C7 level , in a similar fashion , # 15 blade was used to do a discectomy from uncovertebral joint to uncovertebral joint and from endplate - to - endplate using a # 15 scalpel to enter the disk space and then the curette was then used to remove the disk calcified material in the endplate , and then high - speed drill under the microscope was used to drill down the disk space down to the posterior aspect of the annulus where a blunt trocar was passed underneath the posterior longitudinal ligament which was gently released .