Related Experiment Video
Updated: Jun 22, 2026
06:44
Cantilever Bending of Murine Femoral Necks
Published on: January 5, 2022
[Morphometric parameters of the intercondylar notch, gender and age differences]
Acta Chirurgica Iugoslavica
|June 10, 2009
Summary
The femur's intercondylar notch dimensions differ by gender, with males exhibiting wider notches. However, notch width and shape indices show no significant gender-based differences, suggesting morphology, not just size, impacts anterior cruciate ligament (ACL) injury risk.
Area of Science:
- Orthopedic surgery
- Biomechanics
- Anatomy
Context:
- A narrow intercondylar notch of the femur is associated with increased anterior cruciate ligament (ACL) strain and potential rupture.
- Understanding the morphometric variations in the intercondylar notch is crucial for assessing ACL injury risk.
Purpose:
- To describe and compare gender and age-related morphometric differences of the femoral intercondylar notch.
- To investigate factors influencing intercondylar notch morphology relevant to ACL rupture.
Summary:
- Measurements of 50 cadaver knees (32 male, 18 female) revealed significant differences in notch width and epicondylar width between genders (p < 0.01).
- No statistically significant differences were found in notch width index (NWI) or notch shape index (NSI) between males and females (p < 0.05).
- Epicondylar width showed an increasing trend with age.
Impact:
- These findings contribute to understanding the anatomical basis of ACL injuries.
- Provides data for surgical planning and the design of implants in knee arthroplasty.
- Highlights the importance of considering notch morphology in the context of ACL injury prevention strategies.
More Related Videos
Related Concept Videos
01:17Two-Way ANOVA
The two-way ANOVA is an extension of the one-way ANOVA. It is a statistical test performed on three or more samples categorized by two factors - a row factor and a column factor. Ronald Fischer mentioned it in 1925 in his book 'Statistical Methods for Researchers.'
The two-way ANOVA analysis initially begins by stating the null hypothesis that there is an interaction effect between the two factors of a dataset. This effect can be visualized using line segments formed by joining the means for...
The two-way ANOVA analysis initially begins by stating the null hypothesis that there is an interaction effect between the two factors of a dataset. This effect can be visualized using line segments formed by joining the means for...
01:09Changes in the Appendicular Skeleton with Age
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
01:27Signs of Puberty
Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
01:20Introduction to the Skeletal System
The skeletal system is the central framework of the body, consisting of different connective tissues: bones, cartilage, tendons, and ligaments.
Components of the Skeletal System
Bone, or osseous tissue, is a hard connective tissue that forms an internal support structure for the human body. Bones shield vulnerable organs and soft tissue from external forces. For example, the vertebral bones protect and support the spinal cord.
Cartilage, a semi-rigid connective tissue found in regions such as...
Components of the Skeletal System
Bone, or osseous tissue, is a hard connective tissue that forms an internal support structure for the human body. Bones shield vulnerable organs and soft tissue from external forces. For example, the vertebral bones protect and support the spinal cord.
Cartilage, a semi-rigid connective tissue found in regions such as...
01:16Bones 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...
01:29Bone Disorders
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...