There is still no widely accepted diagnostic or classification criteria for the diagnosis of Lumbar spinal stenosis (LSS) and as a consequence studies use widely differing eligibility criteria that limit the generalizability of reported findings 1).
Three spinal canal morphologies were identified: (1) “flattened” canal with predominantly reduced spinal canal AP diameter, (2) spinal canal with predominantly reduced interlaminar angle, and (3) global reduction of all canal parameters. Early age at presentation and subtle spondylosis, although typical, should not be considered the identifying, differentiating factors 2).
Significant lumbar spinal stenosis and lower extremity arthritis may coexist in the elderly. This combination of lumbar stenosis with radiculopathy and lower extremity arthritis may lead to diagnostic uncertainty.
see Hip spine syndrome.