Medically reviewed by Brigid Dwyer, MD The lumbosacral joint, also called L5-S1, is a term used to describe a part of the ...

Herniated nucleus pulposus (HNP), also referred to as a herniated disc, is a common spine pathology that occurs approximately 95% of the time at the L4-L5 or L5-S1 level (Fisher et al., ...

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