Finite element model of L3-S1 lumbar spine with spina bifida occulta at L5. Note the separation of the spinous process at L5 simulating the SBO ...

I have been diagnosed after x-rays with "bilateral spondylolysis at L5 resulting in Grade 1 polisthesis of L5 in relation to S1. Mild facet hypertrophy at L5/S1.On referring back to my GP, he informed ...

The L5 and S1 nerve roots are involved in approximately 95 percent of lumbar-disk herniations. 12,13 ...

Lumbar spondylolysis is a common cause of low back pain in adolescent athletes. It is a unilateral or bilateral defect of the pars interarticularis. The cause is still a matter of debate. A wide range ...