What are the characteristics of the lumbar spine

The characteristics of the lumbar spine are as follows:

First, there are five lumbar vertebrae in total, and there is intervertebral disc tissue between adjacent lumbar vertebrae. The intervertebral disc tissue is prone to degenerative changes under the action of long-term chronic accumulation, resulting in lumbar disc herniation.

Second, the physiological curvature of the lumbar spine is forward, and the range of motion of the lumbar spine is large, which is prone to fractures and dislocations of the lumbar spine and sprains of the psoas muscle.

Third, starting from the lower edge of the first lumbar vertebra, there is no nerve tissue of the dural sac in the spinal canal, only the nerve roots run. Therefore, if the lumbar 1 vertebra is fractured below, it can cause the patient's lower limb motor dysfunction, but cannot cause paraplegia clinical symptoms.

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