Response of the knee joint in lateral impact: Effect of bending moment
CAVALLERO ; BONNOIT ; GHANNOUCHI
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
CAVALLERO ; BONNOIT ; GHANNOUCHI
Résumé / Abstract
In the present study an experimental method for assessing the tolerance to bending moment in the lateral direction of the extended knee joint has been developed. The load response of the lower extremity was measured by means of force transducers. The bending moment transferred thought the entire knee joint was calculated and the motion of the specimen was registered by high speed photography. The bending moment in the lateral direction at the first sign of damage of the entire extended knee joint was determined. Damages were assessed by measuring the knee joint condition (valgus-varus and anterior drawer increment) and by dissecting the knee region. Seventeen tests were carried out under dynamic conditions, seven at a velocity of 16 km/h and ten at 20 km/h on human cadaver lower extremities. The first and most common damage type to entire knee joint in this loading configuration was stretching and rupture or avulsion of the medial collateral ligament (MCL). These damages are generated by identical mechanisms i.e. tensional forces acting on the medial knee structures
