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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_16 | Pages 14 - 14
1 Apr 2013
Penzkofer U Schmidt R Bachmaier S Augat P
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Background

The inherently high stiffness of locked plate constructs is increasingly recognized as a potential cause of deficient healing observed in patients with periarticular locked plating systems.

The objective of this study is to perform a biomechanical comparison of distal femur locked plating systems.

Methods

Biomechanical study using bone substitutes in a distal femur fracture model (OTA/AO 33-A3). Four different locked plate fixation systems were compared (AxSOS, LCP, PERI-LOC, POLYAX). Eight bone implant constructs of each plating system were evaluated in a multiple testing model to examine static failure, stiffness under static and cyclic loading and cyclic fatigue.