 We then moved the vessels over the opposite way approaching the L4-L5 disk space laterally, and the disk was removed in a similar fashion and we also used a 13-mm PEEK vertebral spacer, but this is the variety that we could put in from one side. 
We then moved the vessels over the opposite way approaching the L4 - L5 disk space laterally , and the disk was removed in a similar fashion and we also used a 13 - mm PEEK vertebral spacer , but this is the variety that we could put in from one side .