Fig. (2) A 34-year-old male patient with microdiscectomy was operated upon two years previously due to an L4-L5 herniated lumbar disc. Fifteen days after the first operation, the patient was operated upon again due to recurrent disc herniation; only microdiscectomy was performed. Three months after the second operation, the patient was operated on again due to a second recurrent herniated lumbar disc. PDTS (Cosmic dynamic screw/ rod system) and microdiscectomy were performed. All microdiscectomies were performed at the same level and side. A) Sagittal T2-weighted MR imaging of the patient after second recurrent disc herniation. B) Axial T2-weighted MR imaging of the patient after second recurrent disc herniation. C) Lateral radiographic view after the third operation. D) Antero-posterior radiographic view after the third operation.