MedTrace Logo

A Comparison of Wear Among Mobile and Fixed Bearing Knee Replacements

NCT01165957 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 24

Last updated 2012-08-01

No results posted yet for this study

Summary

The purpose of this study is to determine the amount of polyethylene wear associated with knee replacement designs that incorporate either a fixed or mobile bearing. Tibial polyethylene inserts retrieved from modular total knee replacements during revision operations will be analyzed by obtaining micro-CT images of the retrieved inserts. The components of total volumetric polyethylene loss, including wear associated with the medial articular, lateral articular and backside regions of the insert be quantified by comparing the worn insert with an unworn control. The investigators hypothesize that the fixed bearing inserts where the polyethylene is locked to the metal baseplate will demonstrate more volumetric wear than the mobile bearing inserts that are designed to slide or rotate on the metal baseplate.

Conditions

Sponsors & Collaborators

  • DePuy Orthopaedics

    collaborator INDUSTRY

  • Anderson Orthopaedic Research Institute

    lead OTHER

Principal Investigators

  • Robert H Hopper, Jr., PhD · Anderson Orthopaedic Research Institute

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2010-06-30
Primary Completion
2012-05-31
Completion
2012-05-31

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01165957 on ClinicalTrials.gov