<p><strong>What Is Spinal Stenosis?</strong></p>
<p>Spinal stenosis is a narrowing of the spinal canal, the cavity within the vertebral column through which the spinal cord and nerves pass. Nerves leaving the spinal cord are called nerve roots; they pass through the vertebral column via small canals. Arthritic changes that cause overgrowth of vertebral bones may compress the spinal cord or the nerve roots, impairing sensation and muscle strength in the affected portion of the body. Most common among people in their 50s and 60s, spinal stenosis affects the lumbar (lower back) portion of the spine more than the cervical (neck) region. Symptoms include pain, numbness, and weakness in the neck, arms, lower back, and legs. As a result of leg weakness, people are prone to falls. Because the nerves controlling the bladder emerge from the lower spine, spinal stenosis may also cause urinary incontinence.</p>
Definition Spinal muscular atrophy is a group of inherited diseases that cause progressive muscle degeneration and weakness, eventually leading to death. Alternative Names Werdnig-Hoffmann disease Causes, incidence, and risk factors Spinal muscular atrophy (SMA) is a collection of different muscle diseases. Grouped together, it is the second leading cause of neuromuscular disease. Most of the time, a person must get the defective gene from both parents to be affected. Approximately 4 out of every 100,000 people have the condition. The most severe form is SMA type I, also called Werdnig-Hoffman disease. Infants with SMA type II have less severe symptoms during early infancy, but they become progressively weaker with time. SMA type III is the least severe form of the disease. Rarely, SMA may begin in adulthood. This is usually a milder form of the disease. A family history of spinal muscular atrophy is a risk factor for all types of the disorder.
Every painful spine has a pattern. Do you know your pattern? By knowing when it hurts and when it feels better, you can then figure out how to control your spine pain better. Most spines fit into one of two patterns. Pain that is triggered by extension or pain that is triggered by flexion. Let’s break it down into more detail
Extension-triggered pain presents itself in a variety of ways depending on which part of the spine hurts. If the neck is sensitive to extension, then activities like looking up at a ceiling, the sky or looking through the bottom portion of a bifocal lenses will cause the pain to get worse. This type of pain in the neck is usually related to arthritis in the facet joints of the cervical spine. Improving extension-triggered neck pain is accomplished by tucking the chin closer to the chest, strengthening the anterior neck flexor muscles and avoiding looking up.
Extension-triggered pain in the low back usually feels worse when walking or standing....
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