Nano-Mechanical Properties of Human Meniscal Surfaces

2011 ◽  
Author(s):  
John T. Moyer ◽  
Adam C. Abraham ◽  
Tammy L. Haut Donahue
Keyword(s):  
Mechanical Properties ◽  
Load Distribution ◽  
Tibial Plateau ◽  
Structural Integrity ◽  
Human Knee ◽  
Water Matrix ◽  
Human Knee Joint ◽  
Compressive Loads ◽  
Bone Research ◽  
Femoral Condyles

Osteoarthritis (OA) is a crippling disease in humans that deteriorates the articular cartilage (AC) and subchondral bone. Research has shown AC preservation is most important for halting the initiation of OA, in the human knee joint, and this defense is contingent on the structural integrity of the menisci [1, 2]. The menisci are fibrocartilaginous structures which are crucial for proper load distribution in the knee [3–5]. The menisci are specifically designed to fit the contour of the femoral condyles, aiding to disperse the stresses on the tibial plateau and in turn safeguarding the underlying AC. Circumferentially aligned collagen fibers help to support the menisci while in tension, while a proteoglycan and water matrix reinforce the menisci during compressive loads [2, 6].

A Study of Collagen Crimp Pattern in the Bovine Anterior and Posterior Medial Meniscal Horn Attachments

2007 ◽  
Author(s):  
Diego Villegas ◽  
William Dehlin ◽  
Tammy L. Haut Donahue
Keyword(s):  
Mechanical Properties ◽  
Stress Relaxation ◽  
Knee Joint ◽  
Tibial Plateau ◽  
Ultimate Strain ◽  
Theoretical Studies ◽  
Joint Lubrication ◽  
Meniscal Attachments ◽  
Experimental And Theoretical Studies ◽  
Femoral Condyles

Menisci are fibrocartilagenous structures located between the femoral condyles and tibial plateau that aid in joint lubrication and stability in the knee joint. Previous experimental and theoretical studies have shown that the meniscal horn attachments, which serve as the transition from mensical fibrocartilage into subchondral bone, are important for proper meniscal function [1–3]. Meniscal attachments did not show significant differences in surface mechanical properties such as ultimate strain or moduli, however, there were significant differences in overall behavior of the anterior versus posterior attachments [4]. No significant differences in creep or stress relaxation properties were found between the different meniscal attachments [5].

scholarly journals Mechanical Properties and Internal Structure of Human Knee Joint

1981 ◽  
Vol 9 (2) ◽  
pp. 83-90 ◽  
Author(s):  
Yoshio SHIRASAKI ◽  
Tetsuya TATEISHI ◽  
Toru FUKUBAYASHI
Keyword(s):  
Mechanical Properties ◽  
Knee Joint ◽  
Internal Structure ◽  
Human Knee ◽  
Human Knee Joint

scholarly journals Biomechanical Performance of Menisci under Cyclic Loads

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
J.-G. Tseng ◽  
B.-W. Huang ◽  
Y.-T. Chen ◽  
S.-J. Kuo ◽  
G.-W. Tseng
Keyword(s):  
Knee Joint ◽  
Dynamic Characteristics ◽  
Tibial Plateau ◽  
Articular Surface ◽  
Mode Shapes ◽  
Actual State ◽  
Human Body Model ◽  
Human Knee Joint ◽  
Fatigue Life Analysis ◽  
Femoral Condyles

The meniscus, composed of fibrocartilage, is a very important part of the human knee joint that behaves like a buffer. Located in the middle of the femoral condyles and the tibial plateau, it is a necessary structure to maintain normal biomechanical properties of the knee. Whether walking or exercising, the meniscus plays a vital role to protect the articular surface of both the femoral condyles and the tibial plateau by absorbing the conveying shock from body weight. However, modern people often suffer from irreversible degeneration of joint tissue due to exercise-induced harm or aging. Therefore, understanding its dynamic characteristics will help to learn more about the actual state of motion and to avoid unnecessary injury. This study uses reverse engineering equipment, a 3D optical scanner, and a plastic teaching human body model to build the geometry of knee joint meniscus. Then, the finite element method (FEM) is employed to obtain the dynamic characteristics of the meniscus. The results show the natural frequencies, mode shapes, and fatigue life analysis of meniscus, with real human material parameters. The achieved results can be applied to do subsequent knee dynamic simulation analysis, to reduce the knee joint and lower external impacts, and to manufacture artificial meniscus through tissue engineering.

Regional Comparisons of Nano-Mechanical Properties of Deep Zone Menisci

2012 ◽  
Author(s):  
John T. Moyer ◽  
Troy M. Bouman ◽  
Ryan M. Priest ◽  
Adam C. Abraham ◽  
Tammy L. Haut Donahue
Keyword(s):  
Mechanical Properties ◽  
Articular Cartilage ◽  
Knee Joint ◽  
Knee Replacement ◽  
Load Distribution ◽  
Structural Integrity ◽  
Deep Zone ◽  
Femoral Site ◽  
Regional Comparisons

Osteoarthritis (OA) is a dehabilitating condition that is highly prevalent in today’s society, frequently leading to a knee replacement. OA is characterized by loss of articular cartilage. Previous research has shown articular cartilage preservation is dependent on the structural integrity of the menisci [1, 2]. The human menisci are two crescent shaped fibrocartilaginous structures that provide fundamental load distribution within the knee joint, ultimately aiding to attenuate stresses at the tibio-femoral site [3–5].

Study Surface Roughness and Friction of Synovial Human Knee Joint with Using Mathematical Model

2018 ◽  
Vol 00 (1) ◽  
pp. 109-118
Author(s):  
Enas Y. Abdullah ◽  
◽  
Naktal Moid Edan ◽  
Athraa N. Kadhim ◽  
◽  
...  
Keyword(s):  
Mathematical Model ◽  
Surface Roughness ◽  
Knee Joint ◽  
Human Knee ◽  
Human Knee Joint
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