J Med Syst - Post-operative assessment of an implant fixation in anterior cruciate ligament reconstructive surgery.

Tópicos

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Resumo

The objective of this paper is to numerically simulate the behaviour of an anterior cruciate ligament (ACL) reconstructed knee using interference screw fixation under a single cycle loading or a cyclic loading test and to compare the numerical results with experimental tests using porcine samples of knee joint. A hyper-elastic material model was used to model the tendon graft and evaluate its elongation during continuous and cyclic tensile loading. The rigidity of the interference screw fixation was also examined using the finite element based numerical model. The finite element model uses the benefit of an anatomical 3D geometry of the tibial bone and tendon graft which was created from a CT scan of a patient.

Resumo Limpo

object paper numer simul behaviour anterior cruciat ligament acl reconstruct knee use interfer screw fixat singl cycl load cyclic load test compar numer result experiment test use porcin sampl knee joint hyperelast materi model use model tendon graft evalu elong continu cyclic tensil load rigid interfer screw fixat also examin use finit element base numer model finit element model use benefit anatom d geometri tibial bone tendon graft creat ct scan patient

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