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LUMBAR SPINAL STENOSIS

M. A. Nelson 1

1 General Infirmary, Leeds; England

1. Nine patients with radiological evidence of narrowing of the lumbar spinal canal, proved at operation, are reviewed.

2. They presented with either a claudicant or a sciatic clinical picture.

3. A classification into primary or secondary spinal stenosis is described. The primary type may be due to a reduction in either the sagittal, coronal or both diameters of the spinal canal.

4. Secondary narrowing of the canal may be superimposed upon a primary anatomical abnormality or may cause narrowing in a previously normal canal.

5. The symptoms are thought to be caused by a further reduction in the size of an already narrow canal, producing traction on the nerve tissue, which is then unable to move freely.
(c) British Editorial Society of Bone and Joint Surgery All Rights Reserved
Registered charity no: 209299     Print ISSN: 0301-620X
Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General