The implications of non-anatomical positioning of a meniscus prosthesis on predicted human knee joint biomechanics
Publication year
2020Source
Medical & Biological Engineering & Computing, 58, 6, (2020), pp. 1341-1355ISSN
Publication type
Article / Letter to editor

Display more detailsDisplay less details
Organization
Orthopaedics
Journal title
Medical & Biological Engineering & Computing
Volume
vol. 58
Issue
iss. 6
Page start
p. 1341
Page end
p. 1355
Subject
Radboudumc 10: Reconstructive and regenerative medicine RIHS: Radboud Institute for Health SciencesAbstract
Despite all the efforts to optimize the meniscus prosthesis system (geometry, material, and fixation type), the success of the prosthesis in clinical practice will depend on surgical factors such as intra-operative positioning of the prosthesis. In this study, the aim was therefore to assess the implications of positional changes of the medial meniscus prosthesis for knee biomechanics. A detailed validated finite element (FE) model of human intact and meniscal implanted knees was developed based on a series of in vitro experiments. Different non-anatomical prosthesis positions were applied in the FE model, and the biomechanical response during the gait stance phase compared with an anatomically positioned prosthesis, as well as meniscectomized and also the intact knee model. The results showed that an anatomical positioning of the medial meniscus prosthesis could better recover the intact knee biomechanics, while a non-anatomical positioning of the prosthesis to a limited extent alters the knee kinematics and articular contact pressure and increases the implantation failure risk. The outcomes indicate that a medial or anterior positioning of the meniscus prosthesis may be more forgiving than a posteriorly or laterally positioned prosthesis. The outcome of this study may provide a better insight into the possible consequences of meniscus prosthesis positioning errors for the patient and the prosthesis functionality. Graphical abstract.
This item appears in the following Collection(s)
- Academic publications [227425]
- Electronic publications [107155]
- Faculty of Medical Sciences [86157]
- Open Access publications [76290]
Upload full text
Use your RU credentials (u/z-number and password) to log in with SURFconext to upload a file for processing by the repository team.