In vitro simulation of intraoperative vertebroplasty applied for pedicle screw augmentation. A biomechanical evaluation.

Background And Purpose: The purpose of this study was to evaluate the effect of an in vitro simulation of intraoperative vertebroplasty on embedded pedicle screws resistance to pullout. This method involved an application of acrylic cement into the vertebral bodies only after pedicle screws implementation.

Materials And Methods: For the purpose of conducting this research, the authors used the spines of fully-grown pigs.