Table 1 Radiological criteria for lumbar spinal stenosis (L1 to L5)!
Location of stenosis | Radiological criteria (L1 to L5) |
|---|---|
Central canal stenosis | Antero-posterior diameter of spinal canal ≤12 mm[31], or cross sectional area of dural tube ≤100 mm2 [30] |
Lateral recess stenosis | Lateral recess height ≤ 3 mm, or lateral recess depth ≤ 5 mm [32, 34, 35] |
Foraminal stenosis | Foraminal diameter ≤ 5 mm [36] |