The lumbosacral joint, also called L5-S1, is a term used to describe a part of the spine. L5-S1 is the exact spot where the lumbar spine ends and the sacral spine begins. The lumbosacral joint ...

Low back pain is one of the most common reasons patients see primary care doctors. To understand this condition, it’s ...

As with any spine surgery, patient symptoms ... A brief overview of lumbar functional anatomy is presented.