Spinal Indications • Herniated Disc • Low Back Pain • Lumbar Instability • Compression Fracture • Spondylolysis • Spondylolisthesis • Spinal Stenosis • Degenerative Disc Disease The Flex Foam ®I anterior opening with tongue is indicated for a number of maladies ranging from spinal stenosis to degenerative disc disease and spondylolisthesis. It is also ideal for trunk support for those patients who are restricted to wheelchair use