Home > Back Pain > Back and Leg Pain Treatment-The X Stop Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Mar 26, 2009 by ANShamie, Views: 6719 Back and leg pain are commonly caused by lumbar spinal stenosis: Dr. A Nick Shamie, an orthopedic surgeon at UCLA, discusses the treatment of low back pain caused by lumbar spinal stenosis with the X stop.