Surgical Experience in Cases of L5 and S1 Symptoms Caused by Upper Lumbar Spinal Stenosis of L2–L3 and L3–L4

Object: Previous reports have indicated that the level of lumbar spinal canal stenosis (LSCS) often differs from that diagnosed from neurological symptoms, and L5 nerve roots are often affected by stenosis at the L2-L3 or L3-L4 level; however, few cases have been described. Decompression surgery for upper lumbar spinal canal stenosis (LSCS) of L2-L3 and L3-L4 causing L5 and S1 symptoms was investigated.