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A numerical investigation of the infrapatellar fat pad.
Proc Inst Mech Eng H. 2020 Jul 10 [Online ahead of print]PI

Abstract

The infrapatellar fat pad is an adipose tissue in the knee that facilitates the distribution of synovial fluid and absorbs impulsive actions generated through the joint. The correlation between morphological configuration and mechanical properties is analyzed by a computational approach. The microscopic anatomy of the infrapatellar fat pad is studied aiming to measure the dimension of adipose lobules and the thickness of connective septa. Results from histomorphometric investigations show that the infrapatellar fat pad is an inhomogeneous tissue, constituted by large lobules in the superficial part and smaller lobules in the deepest one. Finite element models of the infrapatellar fat pad are developed. The first model considers the inhomogeneous conformation of the infrapatellar fat pad, composed of micro- and macro-chambers, while the second model considers a homogeneous distribution of adipose lobules with similar dimensions. Computational analyses are performed considering the static standing configuration and the passive flexion-extension movement. The computational results allow us to identify the different stress and strain fields within the tissue and to appreciate the variation of the mechanical performance of the overall system considering the distribution of adipose lobules. Results show that the distribution of adipose lobules in macro- and micro-chambers allows major deformation of the infrapatellar fat pad, decreasing the stress inside the tissues.

Authors+Show Affiliations

Department of Industrial Engineering, University of Padova, Padova, Italy. Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy.Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy. Institute of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy.Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy. Institute of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy.Department of Civil, Environmental and Architectural Engineering, University of Padova, Padova, Italy.Department of Civil, Environmental and Architectural Engineering, University of Padova, Padova, Italy.Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy. Institute of Human Anatomy, Department of Neuroscience, University of Padova, Padova, Italy.Department of Industrial Engineering, University of Padova, Padova, Italy. Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy.Department of Industrial Engineering, University of Padova, Padova, Italy. Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32650701

Citation

Fontanella, Chiara Giulia, et al. "A Numerical Investigation of the Infrapatellar Fat Pad." Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine, 2020, p. 954411920940839.
Fontanella CG, Macchi V, Porzionato A, et al. A numerical investigation of the infrapatellar fat pad. Proc Inst Mech Eng H. 2020.
Fontanella, C. G., Macchi, V., Porzionato, A., Arduino, A., Fotso Fongang, J. V., De Caro, R., Natali, A. N., & Carniel, E. L. (2020). A numerical investigation of the infrapatellar fat pad. Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine, 954411920940839. https://doi.org/10.1177/0954411920940839
Fontanella CG, et al. A Numerical Investigation of the Infrapatellar Fat Pad. Proc Inst Mech Eng H. 2020 Jul 10;954411920940839. PubMed PMID: 32650701.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A numerical investigation of the infrapatellar fat pad. AU - Fontanella,Chiara Giulia, AU - Macchi,Veronica, AU - Porzionato,Andrea, AU - Arduino,Alessandro, AU - Fotso Fongang,Joseph Vannel, AU - De Caro,Raffaele, AU - Natali,Arturo Nicola, AU - Carniel,Emanuele Luigi, Y1 - 2020/07/10/ PY - 2020/7/12/entrez KW - Infrapatellar fat pad KW - finite element analysis KW - flexion–extension KW - microscopic anatomy KW - soft tissue mechanics SP - 954411920940839 EP - 954411920940839 JF - Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine JO - Proc Inst Mech Eng H N2 - The infrapatellar fat pad is an adipose tissue in the knee that facilitates the distribution of synovial fluid and absorbs impulsive actions generated through the joint. The correlation between morphological configuration and mechanical properties is analyzed by a computational approach. The microscopic anatomy of the infrapatellar fat pad is studied aiming to measure the dimension of adipose lobules and the thickness of connective septa. Results from histomorphometric investigations show that the infrapatellar fat pad is an inhomogeneous tissue, constituted by large lobules in the superficial part and smaller lobules in the deepest one. Finite element models of the infrapatellar fat pad are developed. The first model considers the inhomogeneous conformation of the infrapatellar fat pad, composed of micro- and macro-chambers, while the second model considers a homogeneous distribution of adipose lobules with similar dimensions. Computational analyses are performed considering the static standing configuration and the passive flexion-extension movement. The computational results allow us to identify the different stress and strain fields within the tissue and to appreciate the variation of the mechanical performance of the overall system considering the distribution of adipose lobules. Results show that the distribution of adipose lobules in macro- and micro-chambers allows major deformation of the infrapatellar fat pad, decreasing the stress inside the tissues. SN - 2041-3033 UR - https://www.unboundmedicine.com/medline/citation/32650701/A_numerical_investigation_of_the_infrapatellar_fat_pad L2 - https://journals.sagepub.com/doi/10.1177/0954411920940839?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -
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