Anterior locking plate reduces trochanteric fracture migrations during hip extension.pdf.pdf

Clinical Biomechanics 29 (2014) 930–935
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Clinical Biomechanics
journal homepage: ate/clinbiomech
Anterior locking plate reduces trochanteric fracture migrations during
hip extension
Luc P. Cloutier a,b, b, Jeremie Menard b,YvanPetita,b,⁎
a Mechanical Engineering Department, École de technologie supérieure, Montreal, Quebec, Canada
b Laboratoire d'imagerie et d'orthopédie, Hôpital du Sacré-Cœur, Research Center, Montreal, Quebec, Canada
article info abstract
Article history: Background: Greater trochanter fractures or osteotomies fixed with lateral plates still present high rates -
Received 15 December 2013 plications. Unblocked greater trochanter anterior movement during hip extension might be a possible cause of
Accepted 10 June 2014 failure. This study aimed to determine, under stair climbing conditions, the biomechanical behaviour of a greater
trochanter fragment and the impact of an anterior locking plate on its migration.
Keywords: Methods: Eighteen femurs paired from nine fresh frozen cadaveric specimens were tested on a quasi-dynamic
Anterior locking plate
stair climbing cycling test bench. Left and right sides with greater trochanter fractures were randomly fixed either
Quasi-dynamic stair climbing
with an antero-lateral locking plate or with a lateral locking plate. Migrations, defined as the re