Examination methods of sciatica

summary

I work in the computer industry, every day I need to sit all day long in the face of computer processing tasks, for a long time, over time, I feel that I always have leg pain, buttocks pain, a little worried, I went to the hospital for examination, the report told me that I had sciatica, after treatment a lot, let's talk about the examination method of sciatica.

Examination methods of sciatica

First, imaging examination plays an important role, including X-ray film of lumbosacral vertebra and sacroiliac joint, spinal MRI, myelography and CT. In addition to the physical diagnosis of pelvic cavity, CT or MRI of pelvic cavity can be used.

Second: electrophysiological examination (EMG): ① EMG of paravertebral muscles can help to identify root sciatica and distal lesions. ② EMG of short head of biceps femoris can help to differentiate the lateral sciatic nerve from common peroneal neuropathy. ③ It is difficult for patients with pelvic or femoral fractures to undergo routine physical examination. EMG can help to evaluate neurological function. ④ The motor nerve conduction velocity and F wave of the femoral nerve and common peroneal nerve may be abnormal, and it is difficult to stimulate the sciatic nerve conduction velocity to the proximal end of the lesion.

Third, corticosteroids or local anesthetics are injected into piriformis. If the pain is relieved, it is helpful for the diagnosis of piriformis syndrome.

matters needing attention

Here, I would like to remind you that patients often have a long history of repeated low back pain or heavy physical labor, and often have an acute attack after a lumbar injury or bending down. In addition to the typical symptoms and signs of radicular sciatica, there are also lumbar muscle spasm, limited lumbar motion and loss of anteflexion. There may be obvious tenderness and radiation pain in the intervertebral space of disc herniation. X-ray film may have involved intervertebral space narrowing, CT examination can be confirmed.