 Once decompression was deemed satisfactory, the nerve roots were individually inspected and due to the unstable spondylolisthesis, there was noted to be tension on the L4 and L5 nerve roots crossing the disc space at L4-L5. 
Once decompression was deemed satisfactory , the nerve roots were individually inspected and due to the unstable spondylolisthesis , there was noted to be tension on the L4 and L5 nerve roots crossing the disc space at L4 - L5 .