[The indication and clinical value of neural blocks for low back pain].

Neural blocks are commonly used for patients with acute or chronic low back pain. It is important to do correctly technical procedure of neural blocks and more important to be well aware of the indication and clinical value of neural blocks. Neural blocks have two aspects of diagnostic and therapeutic value. In this article, the indication and clinical value of neural blocks were reviewed in trigger point blocks, epidural blocks, selective nerve root blocks, facet blocks and lumbar posterior medial branch blocks.