Clinical Study

Percutaneous Pedicle Screw Fixation with Polymethylmethacrylate Augmentation for the Treatment of Thoracolumbar Intravertebral Pseudoarthrosis Associated with Kummell’s Osteonecrosis

Figure 2

Serial changes in the compression ratio (a) and kyphotic angle (b). The PPF group maintained height of the compressed vertebral bodies after the operation compared to the PVP group.
(a)
(b)