Study aims are:~To evaluate superiority of Surgical treatment with posterior dynamic stabilization compared to Surgical treatment with internal fixation and fusion in lumbar range of motion;~To compare Surgical treatment with posterior dynamic stabilization compared to Surgical treatment with internal fixation and fusion in functional outcomes as measured by change in Oswestry Disability Index;~To compare radiological, clinical, patient-reported and, safety outcomes between the two surgical approaches.
The purpose of this study is to compare outcomes of (i) surgical treatment with posterior dynamic stabilization and (ii) surgical treatment with internal fixation and fusion in patients with multilevel lumbar degenerative disk disease.