Lumbar disc rehydration in the bridged segment using the BioFlex dynamic stabilization system: A case report and literature review

Figure 1 Preoperative imaging assessment. A and B: Preoperative extension-flexion radiographs suggested decreased height without instability in the disc space (L4-5); C and D: Magnetic resonance imaging confirmed L3-S1 disc degeneration with associated low signal intensity and lumbar disc herniation (L4-5) on T2-weighted and axial images.

Figure 2 Postoperative imaging assessment. A and B: Postoperative extension-flexion radiographs revealed that partial movement was reserved in the implanted level; C and D: Magnetic resonance imaging demonstrated disc rehydration within L4-5 at the 2-yr follow-up.