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Nerve compression syndrome, or compression neuropathy, or nerve entrapment syndrome, is a medical condition caused by chronic, direct pressure on a peripheral nerve. [1] It is known colloquially as a trapped nerve , though this may also refer to nerve root compression (by a herniated disc , for example).
However, the pain or other symptoms often radiate to the part of the body served by that nerve. For example, a nerve root impingement in the neck can produce pain and weakness in the forearm. Likewise, an impingement in the lower back or lumbar-sacral spine can be manifested with symptoms in the foot.
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.
[1] [18] The compression of these spinal nerve roots that control sensation and movement in the lower body results in the tingling, pain and weakness NC patients often experience. However, because the severity of symptoms does not correlate well with the degree of stenosis and nerve root compression, a clear understanding of the specific ...
The fifth lumbar spinal nerve 5 (L5) [5] originates from the spinal column from below the lumbar vertebra 5 (L5). L5 supplies many muscles, either directly or through nerves originating from L5. They are not innervated with L5 as single origin, but partly by L5 and partly by other spinal nerves. The muscles are: gluteus maximus muscle mainly S1
To rule out confounding conditions such as radiculopathy or myelopathy, an MRI of the cervical or lumbar spine is often obtained. If plexopathy is suspected after imaging, an EMG performed by a neurologist or physiatrist can help confirm a plexopathy, and clarify the localization within the brachial or lumbosacral plexus.
There are many ways to acquire radial nerve neuropathy, including: [6] Upper arm - a fracture of the bone; Elbow - entrapment of the nerve; Wrist - elbow deformity and soft-tissue masses; Axilla - here the most common cause is compression. However, a dislocation of the humerus is a possible factor as well. It could also be due to brachial ...
Signs and symptoms may include a limp or paralyzed arm, lack of muscle control in the arm, hand, or wrist, and lack of feeling or sensation in the arm or hand. Although several mechanisms account for brachial plexus injuries, the most common is nerve compression or stretch. Infants, in particular, may experience brachial plexus injuries during ...
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