[Block treatment for low back pain--technical note]

Many types of block are used for treatment of low back pain. In the current paper, trigger-point block, facet block, ilio-sacral joint block, epidural block and nerve root infiltration (nerve root block), quite common procedures for treatment of low back pain, are introduced and technical notes are described. There are two important points for block treatment, one is the knowledge of anatomy and another is the knowledge of side effects. We must remember to prepare everything for side effects when block treatment is done.