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Related Experiment Video

Updated: Jun 18, 2026

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
07:43

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

Published on: July 2, 2021

Impingement in Total Hip Replacement: Mechanisms and Consequences.

Thomas D Brown1, John J Callaghan

  • 1Departments of Orthopaedics and Rehabilitation and Biomedical Engineering, University of Iowa, Iowa City IA 52242.

Current Orthopaedics
|December 4, 2009
PubMed
Summary

Total hip impingement and dislocation pose significant risks with advanced implants. Research is advancing to understand biomechanics, implant design, and surgical factors to reduce these complications.

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Impact01:30

Impact

Impact occurs when two bodies collide, leading to the application of impulsive forces between them. Analyzing impact mechanics involves considering two colliding particles moving along a line known as the line of impact, which passes through their centers and is perpendicular to the contact plane.
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...

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Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Biomechanics

Background:

  • Total hip impingement and dislocation have serious clinical consequences, particularly with modern implant designs.
  • Historically, scientific attention to the biomechanics of these complications has been limited.
  • Recent advancements are rapidly increasing research in this area.

Purpose of the Study:

  • To review current laboratory and clinical research on hip impingement and dislocation.
  • To analyze the influence of implant design, surgical factors, and patient activity on these phenomena.
  • To highlight how new research methodologies can improve clinical outcomes.

Main Methods:

  • Review of contemporary laboratory and clinical studies.
  • Analysis of biomechanical factors related to impingement and dislocation.

Related Experiment Videos

Last Updated: Jun 18, 2026

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
07:43

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

Published on: July 2, 2021

  • Examination of implant design variables, surgical implantation factors, and patient activity.

    • Main Results:

    • Impingement and dislocation are influenced by a combination of implant design, surgical technique, and patient behavior.
    • New research methodologies facilitate better translation of laboratory findings to clinical practice.
    • Understanding these factors is crucial for mitigating risks associated with hip implants.

    Conclusions:

    • Continued research into the biomechanics of hip impingement and dislocation is essential.
    • Improved implant designs and surgical procedures can reduce the clinical impact of these complications.
    • Translating research findings into practice offers promise for enhanced patient safety and outcomes.