How is sciatica diagnosed

summary

Last year, I began to feel unwell. I always had pain in my buttocks and thighs. At that time, I was busy with work, so I pasted plaster and took painkillers to relieve the pain. Later, the effect was not very good, so I went to the hospital for examination, only to know that I had sciatica. After treatment, now the basic recovery, how to diagnose sciatica, now share with you.

How is sciatica diagnosed

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

For this disease: to prevent wind cold dampness invasion, is also a common sciatica precautions. Wind cold and dampness can block Qi and blood and obstruct meridians. It is not only an important factor causing sciatica, but also the main cause of aggravation of sciatica.