To determine which of 2 techniques for the treatment of periprosthetic femoral shaft fractures is of greater stiffness.
Design: A laboratory study using 8 pairs of matched, embalmed femurs.
Outcome Measures: Fixation stiffness (the ratio of applied load to displacement at the fracture site), torsional strength, mode of failure for each system, and cement mantle evaluation for cracks after screw insertion.
Locked plating constructs were stiffer than the Ogden construct in axial loading and torsion. Although no differences in loads to failure during torsion were noted, locked plating constructs exhibited catastrophic failure not observed with the Ogden construct.
Copyright remains with the authors and publisher.
To determine which of 2 techniques for the treatment of periprosthetic femoral shaft fractures is of greater stiffness.
Design: A laboratory study using 8 pairs of matched, embalmed femurs.
Outcome Measures: Fixation stiffness (the ratio of applied load to displacement at the fracture site), torsional strength, mode of failure for each system, and cement mantle evaluation for cracks after screw insertion.
Locked plating constructs were stiffer than the Ogden construct in axial loading and torsion. Although no differences in loads to failure during torsion were noted, locked plating constructs exhibited catastrophic failure not observed with the Ogden construct.
Copyright remains with the authors and publisher.