A PEEK Rod-Based Dynamic Instrumentation Construct for the Degenerative Lumbar Spine Disease, First Appraisal Based on Five-year Clinical and Radiological Findings

In one segment constructs the system being evaluated showed no major disadvantage when compared to similar non-fusion pedicle-based techniques nor was it able to consequently prevent ASD. Under the clinical point of view there was in our opinion no marked benefit when compared against decompressive surgery and fusion as the accepted standard. Regarding the multi segment instrumentation further larger number studies are needed to reach a conclusion.