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The influence of a change in the meniscus cross-sectional shape on the medio-lateral translation of the knee joint and meniscal extrusion
Abstrakt
Objective The purpose of this study was to evaluate the influence of a change in the meniscus cross sectional shape on its position and on the biomechanics of a knee joint. Methods One main finite element model of a left knee joint was created on the basis of MRI images. The model consisted of bones, articular cartilages, menisci and ligaments. Eight variants of this model with an increased or decreased meniscus height were then prepared. Nonlinear static analyses with a fixed flexion/extension movement for a compressive load of 1000 N were performed. The additional analyses for those models with a constrained medio-lateral relative bone translation allowed for an evaluation of the influence of this translation on a meniscus external shift. Results It was observed that a decrease in the meniscus height caused a decrease in the contact area, together with a decrease in the contact force between the flattened meniscus and the cartilage. For the models with an increased meniscus height, a maximal value of force acting on the meniscus in a medio-lateral direction was obtained. The results have shown that the meniscus external shift was approximately proportional to the meniscus slope angle, but that relationship was modified by a medio-lateral relative bone translation. It was found that the translation of the femur relative to the tibia may be dependent on the geometry of the menisci. Conclusions The results have suggested that a change in the meniscus geometry in the cross sectional plane can considerably affect not only the meniscal external shift, but also the medio-lateral translation of the knee joint as well as the congruency of the knee joint.
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Autorzy (6)
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Piotr Luczkiewicz
- Gdański Uniwersytet Medyczny II Klinika Ortopedii, Traumatologii i Chirurgii Ręki
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Boguslaw Baczkowski
- Gdański Uniwersytet Medyczny II Klinika Ortopedii, Traumatologii i Chirurgii Ręki
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Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- Licencja
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otwiera się w nowej karcie
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
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PLOS ONE
nr 13,
wydanie 2,
strony 1 - 10,
ISSN: 1932-6203 - Język:
- angielski
- Rok wydania:
- 2018
- Opis bibliograficzny:
- Luczkiewicz P., Daszkiewicz K., Witkowski W., Chróścielewski J., Ferenc T., Baczkowski B.: The influence of a change in the meniscus cross-sectional shape on the medio-lateral translation of the knee joint and meniscal extrusion// PLOS ONE. -Vol. 13, iss. 2 (2018), s.1-10
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1371/journal.pone.0193020
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 196 razy
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