Assessment of outcome of posterior dynamic stabilization system in degenerative lumbar disease

Background: Degenerative disc disease is a leading cause of chronic back pain in the aging population in the world. The present study was conducted to assess outcome of posterior dynamic stabilization system in degenerative lumbar diseases. Materials & Methods: 78 patients of degenerative lumbar diseases of both genders were divided into 2 groups of 39 each. Group I patients underwent decompression and implantation of Dynesys and group II patients underwent PLIF. ODI, VAS scores for back pain and leg pain, operation time, blood loss, and complications were compared in both groups. Results: There were 25 males and 14 females in group I and 20 males and 19 females in group II. The operative time (min) was 136.2 in group I and 172.4 in group II. Blood loss (ml) was 362.4 in group I and 438.2 in group II. Complications were dural tear seen 2 in group II, wound infection was seen in 1 in group II, screw loosening was 1 in group I and 2 in group II and back & leg pain seen 3 in group I and 4 in group II. The mean ODI was 32.5 and 38.5, VAS back pain was 2.6 and 3.12