Computer Assisted Total Knee Replacement

March 22, 2011 updated by: Mayo Clinic

Computer Assisted Navigation in Total Knee Arthroplasty

The purpose of this study is to determine whether intraoperative computer-assisted navigation improves prosthetic implant positioning as compared to conventional intraoperatve instrumentation in Total Knee Arthroplasty (TKA).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Primary data to be obtained is to determine whether mechanical axis of the limb malignment differs between patients whom have computer-assisted TKA and those treated with conventional intraoperative instrumentation.

Three months after surgery follow-up radiographic data will provide evidence on the initial implant position as determined with a series of x-rays including: full length standing, standard AP weight bearing, lateral, patellar, kneelingfilm views and CT evaluation. In addition, a correlation betweeen the CT measures and the kneeling x-ray can be performed at this time. Clinical (Knee Scale Society, WOMAC, and SF-36) data will also be obtained at the three month interval.

Study Type

Interventional

Enrollment (Anticipated)

200

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Florida
      • Jacksonville, Florida, United States, 32224
        • Mayo Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Study participants must:

  1. Be over 18 years of age.
  2. Require a TKA and is considered by the investigator to be a suitable candidate for the specific knee prosthesis identified in protocol.
  3. The subject has given consent to the transfer of his/her information to the sponsor.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
To determine whether mechanical axis of the limb malalignment differs between patients whom have computer-assisted TKA and those treated with conventional intraoperative instrumentation

Secondary Outcome Measures

Outcome Measure
To compare the frontal alignment of the femoral and tibial components from full length standing radiographs
To compare sagittal alignment of the femoral and tibial components from lateral radiographs
To compare the rotation of the femoral and tibial components from CT Scan.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Mayo Clinic

Collaborators

DePuy Orthopaedics

Investigators

  • Principal Investigator: Mary I. O'Connor, M.D., Mayo Clinic

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2004

Primary Completion (Actual)

April 1, 2007

Study Completion (Actual)

April 1, 2007

Study Registration Dates

First Submitted

January 18, 2006

First Submitted That Met QC Criteria

January 18, 2006

First Posted (Estimate)

January 20, 2006

Study Record Updates

Last Update Posted (Estimate)

March 23, 2011

Last Update Submitted That Met QC Criteria

March 22, 2011

Last Verified

March 1, 2011

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 957-04

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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