Correlation between sagittal plane changes and adjacent segment degeneration following lumbar spine fusion.

摘要: Adjacent segment degeneration following lumbar spine fusion remains a widely acknowledged problem, but there is insufficient knowledge regarding the factors that contribute to its occurrence. The aim of this study analyse relationship between abnormal sagittal plane configuration and development adjacent degeneration. Eighty-three consecutive patients who underwent for degenerative disc disease were reviewed retrospectively. Patients with spondylolytic spondylolisthesis scoliosis not included in study. Mean follow-up period was 5 years. Results analysed determine association post operative Thirty-one out 83 (36.1%) showed radiographic evidence normal C7 plumb line sacral inclination immediate radiographs had lowest incidence level change compared abnormality one or both these parameters. difference statistically significant (P<0.02). There no male female patients; posterior alone combined posterolateral interbody fusions; fusions extending down sacrum stopping short sacrum. It concluded normality an important parameter minimizing Retrolisthesis most common type change. abnormalities should preferably be followed-up at least years detect changes.