Biomechanical studies:
Stronger fixation, rotationally stable
X-Bolt superior in static and cyclic testing.
Clinical studies:
WHiTE Four: largest ever hip fracture fixation randomized controlled trial
Better outcomes recorded for X-Bolt in both trials.
Better, despite frailer initial baseline scores for X-Bolt.
More pronounced effect in early post-op (4-week) period in WHiTE One.
Twice the number of 'cut-outs' for SHS screws (vs X-Bolt) across both trials, despite the WHiTE Four screw cut-out rate being uncharacteristically low.