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Bones of the Lower Limb: Femur and Patella

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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...

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Anterior Compartment
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The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...

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The thigh's motion is primarily governed by muscles originating in the pelvic girdle and inserted into the femur. One crucial muscle, the iliopsoas, is a combination of the psoas major and the iliacus muscles, sharing a common insertion point on the lesser trochanter of the femur.
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The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...

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In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

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Hip functions influence on knee dysfunction: a proximal link to a distal problem.

Michael P Reiman¹, Lori A Bolgla, Daniel Lorenz

¹Physical Therapy Dept, Wichita State University, Wichita, KS 67260-0043, USA.

Journal of Sport Rehabilitation

|March 27, 2009

Summary

This commentary explores how hip strength and movement influence knee health throughout life. Understanding this hip-knee connection is vital for treating knee conditions effectively.

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Area of Science:

Biomechanics
Orthopedics
Kinesiology

Background:

The knee joint is frequently affected by pathologies.
Proximal factors, such as hip joint function, can influence knee health.
Lifespan considerations are crucial in understanding joint health.

Purpose of the Study:

To describe the complex relationships between hip-joint strength, range of motion, kinetics/kinematics, and knee pathologies.
To highlight the importance of the hip-knee relationship across the lifespan.
To emphasize the clinical relevance of investigating proximal influences on knee conditions.

Main Methods:

This is a commentary, not an experimental study.
Literature review and synthesis of existing research on hip-knee interaction.
Conceptual framework development.

Main Results:

Hip-joint strength, range of motion, and biomechanics (kinetics/kinematics) are multifactorially related to knee pathologies.
These relationships are relevant across an individual's lifespan.
Dysfunction or altered mechanics in the hip can contribute to knee problems.

Conclusions:

Clinicians must understand the interdependence of the hip and knee joints for functional activities.
Investigating the hip joint is necessary to ameliorate various knee pathologies with proximal origins.
A comprehensive, lifespan approach to hip and knee health is essential for effective clinical management.