L5-S1 is the exact spot where the lumbar spine ends and the sacral spine begins. The lumbosacral joint connects these bones.

Or have you had a sudden numbness or pins-and-needles sensation in your legs or feet that you can’t explain?These are not ...

Thus, a left L5-S1 disc herniation compresses the left S1 ... Although most recover without surgery, patients with large midline lumbar HNPs may suffer significant neurological impairment.

Objectives: To observe the prevalence of lumbar intervertebral disc degeneration in elite athletes ... It was most common at the L5/S1 level, and, of the abnormal group, 36% (n = 11) showed the most ...

An MRI scan revealed severe spinal canal stenosis at L3-L4 and L4-L5, as well as a herniated nucleus pulposus on the right at L5-S1 (Figs 11, 12). DC underwent a L3-L5 decompressive laminectomy ...