Toward patient-specific articular contact mechanics

Area of Science:

• Biomechanics
• Biomaterials Science
• Computational Mechanics

Background:

• Articular cartilage contact mechanics are crucial for joint development, homeostasis, and pathology.
• The nonlinear nature of cartilage and contact problems necessitates advanced numerical methods.
• Significant progress has been made over five decades in understanding and modeling cartilage behavior.

Purpose of the Study:

• To review the historical development of analytical and computational methods for analyzing articular cartilage contact.
• To highlight the advancements in finite element method (FEM) implementations for complex, multiphasic contact analysis.
• To discuss the future potential of patient-specific joint contact mechanics analysis for diagnosis and treatment planning.

Main Methods:

• Review of analytical and computational contact analysis methods.
• Discussion of finite element method (FEM) implementations.
• Integration of multiphasic material representations.
• Application of medical image data for patient-specific models.

Main Results:

• Evolution from qualitative understanding to complex 3D contact analysis capabilities.
• Development of highly nonlinear analysis methods.
• Advancement of FEM for joint contact mechanics.
• Ability to predict strain variations and potential damage within cartilage layers.

Conclusions:

• Computational methods, particularly FEM, have revolutionized the analysis of joint contact mechanics.
• Patient-specific analysis using medical imaging is on the horizon, promising improved diagnosis and treatment.
• These advancements offer new avenues for research and clinical applications in joint pathologies and cartilage homeostasis.