Influence of plate material and screw design on stiffness and ultimate load of locked plating in osteoporotic proximal humeral fractures

摘要

Introduction: The main purpose was to compare the biomechanical properties of a carbon-fibre reinforced polyetheretherketone (CF-PEEK) composite locking platewith pre-existing data of a titaniumalloy plate when used for fixation of an unstable 2-part fracture of the surgical neck of the humerus. The secondary purpose was to compare the mechanical behaviour of locking bolts and conventional locking cancellous screws.