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2. Lumbar spinal stenosis - Wikipedia

   en.wikipedia.org/wiki/Lumbar_spinal_stenosis

   The normal lumbar central canal has a midsagittal diameter (front to back) greater than 13 mm, with an area of 1.45 cm 2. Relative stenosis is said to exist when the anterior-posterior canal diameter measures between 10 and 13 mm. Absolute stenosis of the lumbar canal exists anatomically when the anterior-posterior measurement is 10 mm or less.

3. Spinal stenosis - Wikipedia

   en.wikipedia.org/wiki/Spinal_stenosis

   Such severe spinal stenosis symptoms are virtually absent in lumbar stenosis, however, as the spinal cord terminates at the top end of the adult lumbar spine, with only nerve roots (cauda equina) continuing further down. [15] Cervical spinal stenosis is a condition involving narrowing of the spinal canal at the level of the neck.

4. Neurogenic claudication - Wikipedia

   en.wikipedia.org/wiki/Neurogenic_claudication

   MRI of the lumbar spine showing spinal stenosis. Neurogenic claudication is one subtype of the clinical syndrome of lumbar spinal stenosis (LSS). [9] No gold standard diagnostic criteria currently exist, but evaluation and diagnosis is generally based on the patient history, physical exam, and medical imaging. [1]

5. Cauda equina syndrome - Wikipedia

   en.wikipedia.org/wiki/Cauda_equina_syndrome

   After the conus medullaris (near lumbar vertebral levels 1 (L1) and 2 (L2), occasionally lower), the spinal canal contains a bundle of nerve fibers (the cauda equina or "horse-tail") that branches off the lower end of the spinal cord and contains the nerve roots from L1–L5 and S1–S5. The nerve roots from L4–S4 join in the sacral plexus ...

6. Claudication - Wikipedia

   en.wikipedia.org/wiki/Claudication

   Spinal or neurogenic claudication is not due to lack of blood supply, but rather it is caused by nerve root compression or stenosis of the spinal canal, [1] usually from a degenerative spine, most often at the "L4-L5" or "L5-S1" level.

7. Laminotomy - Wikipedia

   en.wikipedia.org/wiki/Laminotomy

   Lumbar spinal stenosis is formally defined as a decline in diameter length of either the neural foramina, lateral recess, or spinal canal. [1] Stenosis is classified as a decaying disease because it causes the canal to gradually become more and more narrow which can cause pain or loss of function. [1] Common symptoms of lumbar stenosis are pain ...