Prospective study of surgical treatment of degenerative spondylolisthesis : Comparison between decompression alone and decompression with Graf system stabilization

摘要: Study Design. A prospective study of patients with degenerative spondylolisthesis who underwent decompression the spine, and without stabilization using Graf system. Objectives. To assess clinical result alone Summary Background Data. The outcome lumbar for remains uncertain. There is no differences in between undergo those Methods. Eighty-eight were included this study. All reported leg symptoms. Decompression (Group D) was performed 42 during a 5-year period from 1988 through 1992. system G) 46 4-year 1993 1996. statistical difference regarding sex, age at operation, compensable cases, preoperative duration two groups. groups evaluated follow-up examinations 1 3 years after surgery. results all by means 4-grade scale, visual analog recurrence symptoms, persistent low back pain. radiographic findings examined an independent investigator. Results. according to scale deteriorated time both or symptoms each time. Persistent pain Group G significantly lower than that D 1- 3-year follow-ups. Conclusions. Although had effect preventing there significant on reduction