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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...
Knee Joint01:23

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...

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Related Experiment Video

Updated: Jun 29, 2026

Biomechanical Characterization of Human Soft Tissues Using Indentation and Tensile Testing
07:07

Biomechanical Characterization of Human Soft Tissues Using Indentation and Tensile Testing

Published on: December 13, 2016

Knee menisci. Correlation between microstructure and biomechanics.

A Beaupré, R Choukroun, R Guidouin

    Clinical Orthopaedics and Related Research
    |July 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Human knee menisci have distinct mesial and peripheral regions with unique collagen structures. This organization supports specific biomechanical functions crucial for knee joint stability and understanding meniscal injuries.

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    Imaging of the Microstructural Failure Mechanism in the Human Hip
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    Area of Science:

    • Orthopedics
    • Biomechanics
    • Histology

    Background:

    • The human knee meniscus is vital for joint function, yet its detailed microstructural organization and biomechanical implications require further elucidation.
    • Understanding meniscus structure is key to addressing knee joint stability and injury pathology.

    Purpose of the Study:

    • To define the microstructure of human knee menisci using advanced microscopy techniques.
    • To correlate the observed structural organization with specific biomechanical functions and implications for knee joint stability.

    Main Methods:

    • Light microscopy and scanning electron microscopy were employed to examine the microstructural features of human knee menisci.
    • Analysis focused on differentiating regional collagen bundle organization and surface characteristics.

    Main Results:

    • Two distinct regions were identified: a mesial part (inner two-thirds) with radial collagen patterns and a peripheral part (outer one-third) with larger, circumferential fibers.
    • The articular surface of the mesial part featured thinner, parallel bundles, while the periphery was covered by synovium.
    • This structure suggests mesial compression and peripheral tension, facilitating force transmission and resisting outward meniscal displacement.

    Conclusions:

    • The human knee meniscus exhibits a specialized regional microstructure supporting distinct biomechanical roles.
    • This organization is critical for knee joint stability, influencing force distribution and potentially impacting the mechanisms of meniscal injuries.