Can cavity-based pedicle screw augmentation decrease screw loosening? A biomechanical in vitro study

ConclusionThis study demonstrated that creating a cavity may allow a more equal fixation of all pedicle screws with slight reduction of loosening. However, augmentation only through a cannulated screw is almost equivalent, if care is taken that enough cement volume can be pushed out around the tip of the screw.
Source: European Spine Journal - Category: Orthopaedics Source Type: research