Prospective comparison research of intervertebral disc space distraction and anatomical reduction of instrumented posterior lumbar interbody fusion for lumbar degenerative spondylolisthesis

摘要: Objective: To prospectively evaluate the special roles of anatomical reduction instrumented posterior lumbar interbody fusion for degenerative spondylolisthesis. Methods: From January 2006 to December 2009, fifty-six spondylolisthesis cases were treated by fusion, all surgical randomly divided into group and matched according whether reduction. The definitive using pedicle screw instrumentation was followed primary intervertebral disc space distraction with insert cages local morselized bone after decompressive laminectomy. Main outcome measurements included imaging, JOA dysfunction score complication. Results: Fifty-six patients up 13 46 (average, 32) months, Imaging results solid bony rate better than ( P<0.01).