Long-term clinical results of posterolateral fusion with compression-distraction rod system for lumbar degenerative sponlylolisthesis

Abstract

The purposes of this study were; 1) to analyze the motion characteristics of lumbar degenerative spondylolisthesis (LDS), and 2) to investigate the long-term clinical results of a compression-distraction rod system for LDS. The dominant motion of LDS was translation rather than rotation compared with normal lumbar spine and isthmic spondylolisthesis. Long-term clinical results of the compression-distraction system for LDS were satisfactory with regards to fusion rate, JOA scores and complication rates. Further clinical studies with a large sample size are needed to decide indications for decompression procedures, spinal fusion and selection of implants for treatment of LDS.