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Restoration of knee kinematics when reconstructing the anterior cruciate ligament

Leemhuis, K. (2011) Restoration of knee kinematics when reconstructing the anterior cruciate ligament. Bachelor's Thesis, Biology.

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Abstract

The anterior cruciate ligament (ACL) in the knee joint is often injured in sports, and has no innate healing ability. Therefore, reconstruction is needed when the ACL is ruptured. The function of the ACL can be considered from a biomechanical view. When understanding the structural, mechanical and viscoelastic properties of the ACL, it becomes easier to see which properties are important in ACL reconstruction. The aim is to fully restore the knee kinematics. Therefore many different possibilities in the reconstruction can be considered: the graft type, graft fixation, graft tension, tunnel placement and bundle type. Many studies were found which look at these variables from a biomechanical point of view. The information was arranged and for each variable the best option is given. For young patients or athletes a patellar tendon graft is the best option, but for other patients a hamstring tendon graft has more benefits. In general, a double-bundle reconstruction is a better choice than a single-bundle reconstruction. Bioabsorbable screws are very promising, because they have many advantages compared to other types of screws. But more research has to be done, to understand better how degradation of these screws works. A graft is fixed with screws at an initial tension, but due to the viscoelastic properties this can change during cyclic loading. A new idea is to precondition a graft before implanting it into the knee,xc but this has to be further studied.

Item Type: Thesis (Bachelor's Thesis)
Degree programme: Biology
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 15 Feb 2018 07:45
Last Modified: 15 Feb 2018 07:45
URI: http://fse.studenttheses.ub.rug.nl/id/eprint/9607

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