L5-S1 is the exact spot where the lumbar spine ... a bone area in the back that connects the adjoining parts of the facet ...

A CT scan of a 32-year-old ballet dancer who had intermittent low back pain radiating to the back of her left leg during leg extension movements. It reveals arthrosis of the L5-S1 facet joints.

Co-Chief Emeritus of the spine service at HSS, Harvinder Sandhu, M.D., told OTW, “Historically, depression is associated with ...