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

These bones help provide mobility and stability to your back and spinal ... spine rests upon the sacrum. The place where they meet is called the lumbosacral joint, or L5-S1. The muscles in your ...

The spine (aka backbone) is a linked column of bones running from the head down to the lower back. Bone segments form the column. One bone segment is a vertebra, and multiple bone segments are ...

Back pain is the most common ... Beginning at the S1 level, an introducer with stylet is inserted onto the bone of the posterior sacrum. The final position of the introducer is 8–10 mm from ...