A Comparative Study of Knee Systems (Bake-Off)

April 7, 2011 updated by: Foundation for Southwest Orthopedic Research

A Comparative Study of Knee Systems Employing Personalized Computer Generated Cutting Guides for Total Knee Arthroplasty

The custom cutting guides personalized for each patient via pre-operative MRI will result in significantly faster intraoperative time with comparable knee alignment accuracy, cost, knee function, and patient satisfaction.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

60

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
    • Texas
      • Houston, Texas, United States, 77030
        • The Methodist Hospital
      • Houston, Texas, United States, 77030
        • Southwest Orthopedic Group, LLP

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

Inclusion Criteria:

  • must be scheduled to undergo TKA with no bilateral TKA planned within 6 weeks of the initial surgery date
  • must be 18 years of age or older
  • must be capable and willing to provide informed consent
  • must have flexion contracture less than 15 degrees.
  • must have ligament stability no more than 2 degrees instability in varus/valgus extension stress

Exclusion Criteria:

  • medical condition or personal circumstances that will prevent participation and completion of the follow-up visits at 3 weeks, 6 weeks and 3 months post-op
  • currently participating in or has participated in (within 30 days prior to inclusion in this study) another clinical trial of an investigational drug, biologic, device, or procedure
  • known pre-operative systemic infections, uncontrolled diabetes, or diseases or conditions that are known to interfere with the wound healing process
  • Knee alignment deformities greater than 7 degrees varus or valgus
  • known prior knee revisions or previous surgeries deemed to compromise the TKA incision exposure
  • known medical conditions prohibiting the use of MRI or nickel allergy, sensitivity, or hardware in the region of the knee

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: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Custom Cutting Blocks
Procedure: Total Knee Arthroplasty with Custom Cutting Blocks
Subjects randomized to this study group will undergo TKA with patient specific custom cutting blocks generated by pre-op MRI and a Biomet Vanguard knee implant
Other Names:
  • Signature Knee System
Active Comparator: Computer Assisted Surgery
Procedure: Total Knee Arthroplasty via Computer Assisted Surgery
Subjects randomized to this study group will receive TKA via computer assisted surgery and a Biomet Vanguard knee implant

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
mean intraoperative time
Time Frame: measured during surgery (day 1)
Time measured in pre-defined segments from the point that the patient is wheeled into the OR until the OR is clean and ready for the next case's activities to begin.
measured during surgery (day 1)

Secondary Outcome Measures

Outcome Measure
Time Frame
alignment accuracy
Time Frame: 3 weeks post-op
3 weeks post-op

Collaborators and Investigators

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

Sponsor

Foundation for Southwest Orthopedic Research

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

September 1, 2009

Primary Completion (Actual)

August 1, 2010

Study Completion (Actual)

March 1, 2011

Study Registration Dates

First Submitted

April 6, 2011

First Submitted That Met QC Criteria

April 7, 2011

First Posted (Estimate)

April 8, 2011

Study Record Updates

Last Update Posted (Estimate)

April 8, 2011

Last Update Submitted That Met QC Criteria

April 7, 2011

Last Verified

April 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 0509-0060

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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