Lumbosacral spine

X-ray

• Back pain without radiation
• Trauma
• With suspected spondylolisthesis
• Spondylitis/discitis, combined with MRI
• Assessing degenerative change

CT

• Spondylolysis
• Radiculopathy, if MRI is contradicted
• Spinal stenosis, if MRI is contradicted
• Lumbar facet arthropathy

MRI

• Pain with radiation
• Radiculopathy, disc prolapse
• Spinal stenosis
• Spondylitis/discitis, combined with X-ray
• Cauda equina syndrome