Randomized Fixed Bearing vs Mobile Bearing Cruciate Retaining TKA

August 16, 2022 updated by: DePuy Orthopaedics

Multi-center, Prospective, Clinical Evaluation of the PFC Sigma Rotating Platform Cruciate Retaining Versus PFC Sigma Cruciate Retaining Knee Primary Cases

The purpose of this study is to evaluate the clinical performance of the rotating platform and fixed bearing implants in patients undergoing primary total knee replacement. Outcome scoring and radiographic assessment will be the methods used to evaluate performance.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This study will evaluate the clinical performance of rotating platform and fixed bearing knee implants. This will be done by obtaining a series of primary total knee replacements. Patients will receive either the P.F.C.® Sigma™ Rotating Platform Cruciate Retaining Knee System or the P.F.C.® Sigma™ Fixed Cruciate Retaining Knee System and assignment is randomized.

Study Type

Interventional

Enrollment (Actual)

99

Phase

  • Not Applicable

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
    • Montana
      • Billings, Montana, United States, 59101
    • Washington
      • Vancouver, Washington, United States, 98664

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 to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Osteoarthritis
  • Rheumatoid Arthritis
  • Other inflammatory arthritis
  • Avascular necrosis of bone

Exclusion Criteria:

  • Prior ipsilateral TKA
  • Metabolic disorders
  • Joint replacement due to autoimmune disorders

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: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 1
P.F.C.® Sigma™ Rotating Platform (RP) Cruciate Retaining Knee System
Device: Total Knee Replacement
Rotating Platform (RP) Cruciate Retaining Knee System
Other Names:
  • P.F.C.® Sigma™ RP Cruciate Retaining Knee System
Active Comparator: 2
P.F.C.® Sigma™ Fixed Cruciate Retaining Knee System
Device: Total knee replacement
Fixed Cruciate Retaining Knee System
Other Names:
  • P.F.C.® Sigma™ Fixed Cruciate Retaining Knee System

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Knee Society Scores
Time Frame: Pre-operative, 6 and 12 months and annually thereafter for at least 5 years.
The Knee Society Score (KSS) is comprised to two sections (each worth 100 points) for a maximum 200 points. One section is the Knee Society Clinical Score (KSCS) - points are given for pain, motion, and stability and points are deducted for flexion contracture, extension lag, and misalignment. The other section is the Knee Society Functional Score (KSFS) - points are assigned for walking distances and climbing stairs and points are deducted for use of walking aids. For each section, a score of 80-100 = excellent, 70-79 = good; 60-69 = fair; and < 60 = poor.
Pre-operative, 6 and 12 months and annually thereafter for at least 5 years.

Secondary Outcome Measures

Outcome Measure
Time Frame
Medical Imaging
Time Frame: Pre-operative, 6 and 12 months and annually thereafter for at least 5 years.
Pre-operative, 6 and 12 months and annually thereafter for at least 5 years.
SF-12 Patient Outcomes
Time Frame: Pre-operative, 6 and 12 months and annually thereafter for at least 5 years.
Pre-operative, 6 and 12 months and annually thereafter for at least 5 years.
Complications/Revisions
Time Frame: On-going to end of study.
On-going to end of study.

Collaborators and Investigators

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

Sponsor

DePuy Orthopaedics

Investigators

  • Study Director: Tammy L O'Dell, EMT, CCRA, CCRC, DePuy Orthopaedics

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 (Actual)

March 1, 2001

Primary Completion (Actual)

December 26, 2007

Study Completion (Actual)

December 26, 2007

Study Registration Dates

First Submitted

February 7, 2006

First Submitted That Met QC Criteria

February 7, 2006

First Posted (Estimate)

February 9, 2006

Study Record Updates

Last Update Posted (Actual)

September 13, 2022

Last Update Submitted That Met QC Criteria

August 16, 2022

Last Verified

July 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SRP-2

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

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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