radiation direction

According to the pain location and radiation direction, aggravate the pain factor to reduce pain, posture, traction pain and tenderness points of diagnosis is not difficult but very important to determine the etiology.

Prolapse of lumbar intervertebral disc
Patients often have a long history of recurrent low back pain, or heavy manual labor history, often in a waist injury or stoop labor after acute onset. In addition to typical root sciatica symptoms and signs, and the lumbar muscle spasm, lumbar mobility and biomass flexion of vanishing, intervertebral disc prominent site of the vertebral space can have apparent tenderness and pain radiation. Radiography may have affected intervertebral space narrowing, CT examination can diagnose.

Cauda equina tumor
Slow onset, progressive. At the beginning of the disease often unilateral radicular sciatica, and gradually developed into a bilateral. Nocturnal pain increased significantly, the course of progressive. And the emergence of sphincter dysfunction and sellar region decreased sensation. Lumbar puncture subarachnoid cerebrospinal fluid obstruction and protein quantification were increased, and even the emergence of Froin syndrome ( cerebrospinal fluid yellow, placed themselves after solidification ), the spinal cord of iodic water radiography or MRI can be confirmed.

Lumbar spinal canal stenosis
More common in middle-aged males, early often have " intermittent claudication", after walking leg pain exacerbations, but stooped walk or rest after the symptoms relieved or disappeared. When the nerve root or cauda equina compression serious when, also can appear on one side or both sides of sciatica symptoms and signs, the course was progressive, bed rest or traction treatment. Lumbosacral vertebral X-ray or CT can be confirmed.

Lumbosacral nerve root inflammation
Due to infection, poisoning, nutrition metabolism or strain, cold and other factors pathogenesis. Generally more acute onset, and impaired range are often beyond the sciatic nerve innervation area, performance for the entire lower extremity weakness, pain, mild muscle atrophy, in addition to the Achilles tendon reflex, patellar reflex is often diminished or disappeared.

In addition, we need to consider the lumbar vertebra tuberculosis, vertebral metastatic carcinoma. Sciatica, should pay attention to whether the cold or infection history, and sacroiliac joint, hip joint, pelvic and hip lesions, when necessary, in addition to lines of lumbosacral vertebral radiography, feasible sacroiliac joint radiography, anal finger, gynecological examination and pelvic viscera B ultrasound examination in order to identify the causes of.