Patients with sciatica know best what it feels like to 'numb all the way to the foot.' Many people have heard of sciatica, but most people don't know that sciatica is a symptom, not a disease. Just as stomach pain is a symptom, there are many possible causes behind it, such as tension and gastroenteritis, so is sciatica. The most common causes are disc herniation, lumbar spondylolisthesis and bone spurs.
Radiculopathy is the cause of the pain
Sciatic nerve is a large nerve of lower extremity, by the 4th, 5th lumbar vertebra and before 3 sacrum assemble and become, so called sciatica, what point to is to go up along sciatic nerve to conduction and the ache feeling below, ache limits can be spread downward along the side after ham, reach crus normally, painful even to sufficient back or sole.
Most people think that sciatica is caused by the sciatic nerve itself, but this is a myth. It is the lesion of the nerve root that is the most common source of pain.
Nerve root refers to the source of the nerve from the spinal cord, such as disc herniation, lumbar degeneration, spinal stenosis, tumors, etc., can cause nerve root compression caused pain.
1 herniated disc
Disc herniation is one of the common causes of sciatica. The disc consists of a cartilaginous nucleus pulposus with a central nucleus pulposus surrounded by a strong fibrous ring. Human body 80% force can impact vertebra, intervertebral disc has cushion pressure function, but long-term force can make fiber annulus ruptures, nucleus pulposus protrudes compression spinal nerve.
There are intervertebral discs between the vertebrae, each disc may occur disc herniation, the neck and lumbar movement, especially the fourth, fifth lumbar vertebra and the first sacrum stress the most, most often appear disc herniation.
Vulnerable people: 30 to 50 years old is a vulnerable age, especially overweight, improper posture of sitting office workers, wearing stiletto heels, weight lifting workers, are at high risk.
Treatment methods: generally speaking, 90% of patients with moderate rest for three months, discomfort will improve, the rest of the symptoms did not alleviate patients, doctors with conservative therapy, such as restricted activities, anti-inflammatory analgesic drugs and physical therapy assisted. Less than one in ten patients needs surgery.
Lumbar spondylolisthesis is another cause of sciatica. The lower lumbar spine is the only support that supports the body weight at the back. As the intervertebral disc that connects the vertebrae in the middle, if the upper and lower bones cannot be grasped, the spine will flow like dirt and rocks. The upper segment slides to the front of the lower spine, causing compression or pulling of nerve roots. The patient lies flat, vertebra returns a place to just can alleviate, once stand for a long time again can face intervertebral disc to be unable to hold vertebra, generation takes out painful, numbness feeling.
Good hair crowd: the reason of lumbar spondylolisthesis can be divided into acquired nature and congenital, among which the day after degenerative spondylolisthesis is the most common, good hair in the elderly over 65 years old, among which female patients more than male, may also be traumatic spondylolisthesis, because of serious injury, such as fracture, vertebral plate fracture, cause spondylolisthesis. Congenital is the rarest, these patients are because of congenital lumbar vertebra structure is abnormal, and easy to produce slippage.
Treatment: according to statistics, about 3% to 12% of the population have lumbar spondylolisthesis, and only about 5% to 10% of them need surgical treatment due to severe symptoms. The treatment of lumbar spondylolisthesis is also conservative and can be assisted by the use of a back frame to strengthen the back and reduce the occurrence of upper and lower spinal movement.
After the symptoms are relieved and the pain is no longer, it is recommended that patients do core muscle training three times a week to share the spinal burden with the strength of chest muscles, back muscles and abdominal muscles.
3 a bone spur
There is also a common cause of sciatica is a bone spur, often occur in cervical vertebra and lumbar vertebra place, vertebral cartilage loss of moisture, elasticity gradually, between the spinal joint surface under pressure to increase, as the two tuo stacked up and down the dough, vertical extrusion, the dough will protrude in horizontal direction, joint edge, grow some bone spurs, bone spurs to our spinal cord or nerve compression, can cause nerve root of pathological changes, cause pain, numbness.
Most people develop bone spurs when they are older than 45. More men than women develop bone spurs, but symptoms begin around age 65.
Treatment method: 15% to 25% of patients with symptoms will choose to seek medical treatment, mainly conservative treatment, but when the active treatment has not improved for more than half a year, or during the treatment, the pain symptoms become more serious and the muscle strength becomes worse, surgical treatment should be considered.
Avoid sciatica. Office workers remember to give themselves time off
Should maintain good sitting posture at ordinary times, such as to extract heavy objects or tie shoelaces, remember to squat instead of bending. In addition, avoid sitting for a long time. Office workers should give themselves time after class and suggest standing up and stretching every 30 minutes or one hour to relax their muscles. Proper training of abdominal muscles, back muscles and other core muscles, conducive to the stability of the spine.