腰椎小关节是脊柱连接的重要关节,具有限制脊柱前屈前移运动,抵抗压缩、剪切及旋转等各种形式负荷的功能。外伤、异常的应力等因素均可导致该关节的退行性变和损伤。小关节病变是临床上引起下腰痛的一个重要原因,目前调查认为,15%～45%的慢性非特异性下腰痛与小关节病变有关[1] The lumbar facet joint is an important joint of the spine, which has the function of restraining forward movement of the anterior spinal flexion, resisting various forms of load such as compression, shearing and rotation. Trauma, abnormal stress and other factors can lead to degeneration and damage of the joint. Small joint disease is clinically the cause of low back pain is an important reason, the current survey shows that 15% to 45% of chronic non-specific low back pain and small joint disease [1]