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spinal_stenosis

spinal stenosis

Introduction

  • spinal stenosis is narrowing of the spinal canal or neural foraminae resulting in pressure on the spinal cord or nerve roots
  • lumbar stenosis is most common followed by cervical stenosis
  • 1st described by Antoine Portal in 1803

Lumbar spinal stenosis

aetiology

  • usually degenerative as a result of arthritis of the facet joints and thus occurs mainly in those over 60yrs age
    • as the disks dry out with age and lose height, more weight is taken on by the facet joints leading to arthritic changes and the neural foraminae become smaller
    • affects some 8% of the elderly population
  • congenital forms may present between ages 30 and 50 yrs
  • other causes include rheumatoid arthritis, spinal tumours, trauma, Paget's disease, scoliosis, spondylolisthesis, achondroplasia

clinical features

  • pain on standing
  • neurogenic intermittent claudication may occur on prolonged standing, walking or extension of the lumbar spine
  • sciatica may occur and may be bilateral
  • severe cases may cause cauda equina syndrome (CES)

Cervical spinal stenosis

spinal_stenosis.txt · Last modified: 2018/09/24 23:40 (external edit)