Sensorimotor control of knee stability. A review
1Department of Orthopedic Surgery, Louisiana State University Medical Center, New Orleans, USA.
Scandinavian Journal of Medicine & Science in Sports
|March 17, 2001
Summary
Joint stability relies on a synergistic function of ligaments and muscles, not just ligaments alone. Muscular activity plays a crucial, dynamic role in maintaining joint integrity and controlling motion.
Area of Science:
- Biomechanics
- Neurophysiology
- Orthopedics
Background:
- Traditionally, joint stability was attributed solely to ligaments, viewed as passive restraints.
- Recent research highlights the significant, often overlooked, role of musculature in joint stability.
- Muscles offer dynamic, adaptable viscoelastic contributions beyond the fixed responses of ligaments.
Purpose of the Study:
- To review the anatomy and physiology of joint mechanoreceptors and neural pathways.
- To describe current concepts of reflex arcs related to joint stability.
- To emphasize the biomechanical outcomes of musculature in maintaining joint stability.
Main Methods:
- Review of anatomical and physiological data on mechanoreceptors and neural pathways.
- Analysis of biomechanical principles governing ligamentous and muscular contributions to stability.
- Examination of experimental data from human and animal studies on muscle function in joint stability.
Main Results:
- Joint stability is a complex, synergistic function involving bones, ligaments, muscles, and neural elements.
- Muscles provide dynamic viscoelastic effects, actively contributing to stability during movement.
- Clinical findings demonstrate the efficacy of simulating ligament-muscle functions in managing joint instability.
Conclusions:
- Joint stability is a holistic, coordinated effort, not solely dependent on passive ligamentous structures.
- Understanding the dynamic role of musculature and neural control is essential for joint health.
- Therapeutic strategies should consider the integrated function of muscles and ligaments for optimal joint stability.
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