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Computational study on extra-articular knee structures preventing the anterior cruciate ligament from re-rupturing using the GHBMC M50-PS

Paper presented at 6th SIMBIO-M Conference, June 18-19 2020, virtual conference
: Boljen, Matthias; Blanke, F.

Fulltext urn:nbn:de:0011-n-5995703 (584 KByte PDF)
MD5 Fingerprint: 7ec9d2675ceb9a0c97d2eb53b66e9bb0
Created on: 21.8.2020

2020, 8 pp.
SIMBIO-M Conference <2020, Online>
Conference Paper, Electronic Publication
Fraunhofer EMI ()
finite element analysis; human knee; anterior cruciate ligament; anterolateral ligament; GHBMC

An anterior cruciate ligament (ACL) rupture is a frequent injury in athletes and may lead to a reduced activity level and subsequent joint lesions due to a non-compensable rotational instability of the human knee. In most cases, singular ACL reconstruction can restore the anterior-posterior and rotational stability. However, in some cases, rotational instability with positive pivot phenomenon persists and raises questions about additional extra-articular structures supporting the ACL in stabilizing the knee under rotational loading. The present study aims to evaluate the influence of such extra-articular structures and their impact on the rotational stability of the knee by using an isolated FE knee model extracted from the full body model of the GHBMC M50-PS. The main contributors to relieve loads on the ACL and to increase rotational stability for a given rotation of the femur will be identified.