LUMBAR SPINAL STENOSIS
Your spinal cord is a bundle of nerves that runs through a tunnel formed by your vertebrae. The tunnel is called the spinal canal. Lumbar spinal stenosis is a narrowing of the spinal canal in the lower part of your back. Stenosis, which means narrowing, can cause pressure on your spinal cord or the nerves that go from your spinal cord to your muscles.
Spinal stenosis can happen in any part of your spine but is most common in the lower back. This part of your spine is called your lumbar area. Five lumbar vertebrae connect your upper spine to your pelvis.
Causes:
• osteoarthritis
• Narrow spinal canal
• Injury to the spine
• Spinal tumor
• Certain bone diseases
• Past surgery of the spine
• Rheumatoid arthritis
Symptoms:
• Pain in the back
• Burning pain going into the buttocks and down into the legs (sciatica)
• Numbness, tingling, cramping, or weakness in the legs
• Loss of sensation in the feet
• A weakness in a foot that causes the foot to slap down when walking (“foot drop”)
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