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 ...

Pls help I had a L4/5 fusion last year Nov 2006, lately I've been having losts of pressure (pain) on my right side down the sciatica area and pressure on the buttock area what can be causing this? Ps: ...