Tribology and total hip joint replacement: current concepts in mechanical simulation

Area of Science:

• Tribology and Biomaterials Science
• Orthopaedic Biomechanics and Implant Design

Background:

• Wear of total hip prostheses is a significant clinical issue affecting numerous patients.
• Understanding tribological phenomena is crucial for enhancing the lifespan of orthopaedic implants.

Purpose of the Study:

• To review the current state-of-the-art of hip joint simulators globally.
• To provide a schematic overview of constructive solutions used to replicate in vivo conditions.
• To offer commentary on the evolution and existing standards for joint simulation.

Main Methods:

• Review of international literature on hip joint simulators.
• Schematic overview of simulator designs and their constructive solutions.
• Analysis of accelerated testing protocols and their ability to simulate extreme conditions.

Main Results:

• Identification of diverse simulator designs and their approaches to mimicking in vivo conditions.
• Discussion of the capabilities of simulators in testing material performance under extreme conditions.
• Highlighting variations in sophistication and design interpretations across different simulators.

Conclusions:

• Hip joint simulators are essential tools for evaluating orthopaedic implant performance.
• A need exists for standardized simulation protocols to ensure global research consistency.
• A consensus conference is proposed to establish shared protocols among research laboratories.