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Kinematic Analysis: Posterior Stabilized, Fixed Bearing Total Knee Arthroplasty With Attune Knee System

NCT02204748 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 5

Last updated 2019-10-10

Study results available
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Summary

A better understanding of knee joint kinematics is important to explain the premature polyethylene wear failures within total knee arthroplasties (TKAs) and to help design a prosthesis that most closely approximates the normal knee. Specifically, posterior stabilizing (PS) knees have been found to be associated with lower amounts of posterior femoral rollback, higher occurrence of reverse axial rotation and increased amount of condylar lift-off. The DePuy Synthes Joint Reconstruction's Attune PS fixed bearing (FB) knee system has incorporated subtle changes in its design to address restoration of kinematics that more closely resemble those of a normal knee. To understand if this design is able to effectively restore kinematics in the implanted knee, further in vivo analysis is necessary. This pilot study will analyze 5 subjects with the Attune PS FB 3 months post-operatively using the University of Tennessee's mobile fluoroscopy unit while performing three daily activities, level walking, ramp down and deep knee bend. Since this is a pilot study, there is no hypothesis.

Conditions

Interventions

DEVICE

DePuy Attune posterior stabilizing fixed bearing knee system

Sponsors & Collaborators

  • DePuy Orthopaedics

    collaborator INDUSTRY

  • The University of Tennessee, Knoxville

    lead OTHER

Principal Investigators

  • Adrija Sharma, Ph. D. · University of Tennessee

  • William R Hamel, Ph. D. · University of Tennessee

Eligibility

Min Age
30 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-11-30
Primary Completion
2015-08-31
Completion
2015-08-31

Countries

  • United States

Study Locations

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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 NCT02204748 on ClinicalTrials.gov