椎间盘是连结相邻两个椎体的纤维软骨盘,由髓核和纤维环和软骨板构成。当纤维环破裂时,髓核容易向后外侧脱出,突入椎管或椎间孔,压迫脊髓和脊神经,临床上称为椎间盘突出症。一般认为,急性损伤如腰背扭伤并不能引起腰椎间盘突出,临床上严重的脊柱损伤如骨折,亦少有椎间盘突出。 Disc is connected to the adjacent two vertebral fibular cartilage disk, the nucleus and the annulus fibrosus and cartilage plate. When the annulus fibrosus rupture, the nucleus easily prolapse to the posterolateral, into the spinal canal or intervertebral foramen, oppression of the spinal cord and spinal nerves, clinically known as disc herniation. Generally believed that acute injuries such as back sprains and can not cause lumbar disc herniation, clinically severe spinal injuries such as fractures, but also few disc herniation.