 We were able to reestablish the disk space, it was very difficult, required meticulous dissection and then drilling with a diamond bur in the disk space underneath the spinal canal, very carefully holding the spinal canal out of harm's way as well as the exiting nerve root. 
We were able to reestablish the disk space , it was very difficult , required meticulous dissection and then drilling with a diamond bur in the disk space underneath the spinal canal , very carefully holding the spinal canal out of harm 's way as well as the exiting nerve root .